| DAA | Regence BCBS |
| DAB | BCBS Blue Care Network Michigan (MI) |
| DAC | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DAD | BCBS of Illinois (IL) |
| DAE | Wellmark |
| DAF | Wellmark |
| DAG | BCBS of South Carolina (SC) / Southcarolinablues |
| DAH | Anthem Blue Cross(BC) of California (CA) |
| DAI | BCBS of Massachusetts (MA) |
| DAJ | Wellmark |
| DAK | BCBS of Massachusetts (MA) |
| DAL | BCBS of Texas (TX) |
| DAM | Unassigned Prefix |
| DAN | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DAO | Anthem BCBS of Ohio (OH) |
| DAP | Wellmark |
| DAQ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DAR | BCBS of Minnesota (MN) |
| DAS | Wellmark |
| DAT | BCBS of Texas (TX) |
| DAU | Unassigned Prefix |
| DAV | Unassigned Prefix |
| DAW | Wellmark |
| DAX | BCBS of Illinois (IL) |
| DAY | Anthem BCBS of Ohio (OH) |
| DAZ | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DBA | Anthem BCBS of Kentucky (KY) |
| DBB | Unassigned Prefix |
| DBC | BCBS of Tennessee (TN) |
| DBD | Unassigned Prefix |
| DBE | Anthem BCBS of Ohio (OH) |
| DBF | Anthem BCBS of Ohio (OH) |
| DBG | Anthem BCBS of Ohio (OH) |
| DBH | Premera BCBS of Alaska (AK) |
| DBI | Anthem BCBS of Missouri (MO) |
| DBJ | Unassigned Prefix |
| DBK | Wellmark |
| DBL | BCBS of Alabama (AL) |
| DBM | Highmark BCBS of Pennsylvania (PA) |
| DBN | Unassigned Prefix |
| DBO | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DBP | Unassigned Prefix |
| DBQ | Unassigned Prefix |
| DBR | BCBS of South Carolina (SC) / Southcarolinablues |
| DBS | Unassigned Prefix |
| DBT | BCBS Blue Care Network Michigan (MI) |
| DBU | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DBV | BCBS Blue Care Network Michigan (MI) |
| DBW | BCBS Blue Care Network Michigan (MI) |
| DBX | BCBS of Massachusetts (MA) |
| DBY | BCBS of Minnesota (MN) |
| DBZ | Unassigned Prefix |
| DCA | Anthem BCBS of Missouri (MO) |
| DCB | Anthem BCBS of Ohio (OH) |
| DCC | BCBS Blue Care Network Michigan (MI) |
| DCD | Highmark BCBS of Pennsylvania (PA) |
| DCE | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DCF | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DCG | Wellmark |
| DCH | BCBS Blue Care Network Michigan (MI) |
| DCI | Unassigned Prefix |
| DCJ | Unassigned Prefix |
| DCK | Unassigned Prefix |
| DCL | BCBS of Tennessee (TN) |
| DCM | Highmark BCBS of Pennsylvania (PA) |
| DCN | BCBS of Nebraska (NE) |
| DCO | Unassigned Prefix |
| DCP | BCBS of Illinois (IL) |
| DCQ | Wellmark |
| DCR | BCBS of Tennessee (TN) |
| DCS | Wellmark |
| DCT | Wellmark |
| DCU | Unassigned Prefix |
| DCV | BCBS of Texas (TX) |
| DCW | Horizon BCBS of New Jersey (NJ) |
| DCX | BCBS of Alabama (AL) |
| DCY | Unassigned Prefix |
| DCZ | Regence BCBS |
| DDA | Florida (FL) Blue |
| DDB | BCBS of Tennessee (TN) |
| DDC | Unassigned Prefix |
| DDD | Unassigned Prefix |
| DDE | Unassigned Prefix |
| DDF | Anthem BCBS of Wisconsin (WI) |
| DDG | BCBS of Texas (TX) |
| DDH | Wellmark |
| DDI | Unassigned Prefix |
| DDJ | BCBS Blue Care Network Michigan (MI) |
| DDK | Highmark BCBS of Pennsylvania (PA) |
| DDL | Capital Blue Cross of Pennsylvania (PA) |
| DDM | BCBS of Minnesota (MN) |
| DDN | BCBS of Louisiana(LA) |
| DDO | BCBS of Louisiana(LA) |
| DDP | Anthem BCBS of New Hampshire (NH) |
| DDQ | Unassigned Prefix |
| DDR | Unassigned Prefix |
| DDS | Anthem BCBS of Ohio (OH) |
| DDT | Blue shield(BS) of California (CA) |
| DDU | Unassigned Prefix |
| DDV | BCBS of Tennessee (TN) |
| DDW | Unassigned Prefix |
| DDX | Unassigned Prefix |
| DDY | BCBS Blue Care Network Michigan (MI) |
| DDZ | BCBS of Illinois (IL) |
| DEA | BCBS of Illinois (IL) |
| DEB | Anthem Blue Cross(BC) of California (CA) |
| DEC | BCBS of Nebraska (NE) |
| DED | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DEE | Anthem BCBS of Indiana (IN) |
| DEF | BCBS of Illinois (IL) |
| DEG | BCBS of Tennessee (TN) |
| DEH | BCBS Blue Care Network Michigan (MI) |
| DEI | BCBS Blue Care Network Michigan (MI) |
| DEJ | Blue shield(BS) of California (CA) |
| DEK | BCBS Blue Care Network Michigan (MI) |
| DEL | Anthem Blue Cross(BC) of California (CA) |
| DEM | BCBS Blue Care Network Michigan (MI) |
| DEN | Premera BCBS of Alaska (AK) |
| DEO | Blue shield(BS) of California (CA) |
| DEP | Anthem Blue Cross(BC) of California (CA) |
| DEQ | Anthem BCBS of Indiana (IN) |
| DER | BCBS of Texas (TX) |
| DES | BCBS Blue Care Network Michigan (MI) |
| DET | Anthem BCBS of Connecticut (CT) |
| DEU | Anthem BCBS of Missouri (MO) |
| DEV | Unassigned Prefix |
| DEW | Unassigned Prefix |
| DEX | BCBS of Minnesota (MN) |
| DEY | BCBS of Illinois (IL) |
| DEZ | Unassigned Prefix |
| DFA | BCBS of Kansas City |
| DFB | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DFC | BCBS of Illinois (IL) |
| DFD | Unassigned Prefix |
| DFE | Unassigned Prefix |
| DFF | Unassigned Prefix |
| DFG | Wellmark |
| DFH | Unassigned Prefix |
| DFI | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DFJ | Unassigned Prefix |
| DFK | BCBS Blue Care Network Michigan (MI) |
| DFL | Unassigned Prefix |
| DFM | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DFN | Florida (FL) Blue |
| DFO | Blue shield(BS) of California (CA) |
| DFP | BCBS of Tennessee (TN) |
| DFQ | Anthem BCBS of Ohio (OH) |
| DFR | Wellmark |
| DFS | BCBS of Illinois (IL) |
| DFT | BCBS of Texas (TX) |
| DFU | Unassigned Prefix |
| DFV | BCBS of Illinois (IL) |
| DFW | Unassigned Prefix |
| DFX | Florida (FL) Blue |
| DFY | BCBS of Texas (TX) |
| DFZ | Anthem BCBS of Ohio (OH) |
| DGA | Anthem Blue Cross(BC) of California (CA) |
| DGB | BCBS of South Carolina (SC) / Southcarolinablues |
| DGC | Blue shield(BS) of California (CA) |
| DGD | Blue Cross (BC) of Idaho (ID) |
| DGE | Wellmark |
| DGF | Blue shield(BS) of California (CA) |
| DGG | Regence BCBS |
| DGH | Unassigned Prefix |
| DGI | BCBS of Tennessee (TN) |
| DGJ | BCBS of Massachusetts (MA) |
| DGK | Florida (FL) Blue |
| DGL | BCBS of Alabama (AL) |
| DGM | Unassigned Prefix |
| DGN | BCBS of Tennessee (TN) |
| DGO | BCBS Blue Care Network Michigan (MI) |
| DGP | BCBS Blue Care Network Michigan (MI) |
| DGQ | BCBS of Tennessee (TN) |
| DGR | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DGS | BCBS of Tennessee (TN) |
| DGT | BCBS of Tennessee (TN) |
| DGU | BCBS of Alabama (AL) |
| DGV | Wellmark |
| DGW | BCBS of Tennessee (TN) |
| DGX | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DGY | BCBS Blue Care Network Michigan (MI) |
| DGZ | Unassigned Prefix |
| DHA | Anthem BCBS of Kentucky (KY) |
| DHB | Empire BCBS of New York (NY) |
| DHC | BCBS of Alabama (AL) |
| DHD | Anthem BCBS of Ohio (OH) |
| DHE | BCBS Blue Care Network Michigan (MI) |
| DHF | Empire BCBS of New York (NY) |
| DHG | Anthem BCBS of Missouri (MO) |
| DHH | Anthem BCBS of Ohio (OH) |
| DHI | Capital Blue Cross of Pennsylvania (PA) |
| DHJ | Anthem BCBS of Ohio (OH) |
| DHK | BCBS of Tennessee (TN) |
| DHL | Anthem BCBS of Ohio (OH) |
| DHM | BCBS Blue Care Network Michigan (MI) |
| DHN | BCBS of Massachusetts (MA) |
| DHO | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DHP | Excellus BCBS of New York (NY) |
| DHQ | Unassigned Prefix |
| DHR | Unassigned Prefix |
| DHS | BCBS of Kansas City |
| DHT | Regence BCBS |
| DHU | BCBS of North Carolina (NC) |
| DHV | Wellmark |
| DHW | BCBS of Illinois (IL) |
| DHX | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DHY | Empire BCBS of New York (NY) |
| DHZ | Unassigned Prefix |
| DIA | Wellmark |
| DIB | Wellmark |
| DIC | Unassigned Prefix |
| DID | BCBS of Tennessee (TN) |
| DIE | Highmark BCBS of Pennsylvania (PA) |
| DIF | BCBS of Kansas City |
| DIG | Unassigned Prefix |
| DIH | Highmark BCBS of Pennsylvania (PA) |
| DII | BCBS of South Carolina (SC) / Southcarolinablues |
| DIJ | Unassigned Prefix |
| DIK | Highmark BCBS of Pennsylvania (PA) |
| DIL | Wellmark |
| DIM | Unassigned Prefix |
| DIN | Unassigned Prefix |
| DIO | Florida (FL) Blue |
| DIP | BCBS of Louisiana(LA) |
| DIQ | BCBS of South Carolina (SC) / Southcarolinablues |
| DIR | BCBS of Alabama (AL) |
| DIS | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DIT | Blue shield(BS) of California (CA) |
| DIU | Unassigned Prefix |
| DIV | BCBS of Tennessee (TN) |
| DIW | Empire BCBS of New York (NY) |
| DIX | Unassigned Prefix |
| DIY | BCBS of Massachusetts (MA) |
| DIZ | Wellmark |
| DJA | Regence BCBS |
| DJB | Anthem Blue Cross(BC) of California (CA) |
| DJC | Unassigned Prefix |
| DJD | Florida (FL) Blue |
| DJE | Unassigned Prefix |
| DJF | Horizon BCBS of New Jersey (NJ) |
| DJG | Unassigned Prefix |
| DJH | Wellmark |
| DJI | Anthem BCBS of Georgia (GA) |
| DJJ | Horizon BCBS of New Jersey (NJ) |
| DJK | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DJL | Empire BCBS of New York (NY) |
| DJM | BCBS of Texas (TX) |
| DJN | Blue shield(BS) of California (CA) |
| DJO | BCBS of Louisiana(LA) |
| DJP | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DJQ | Florida (FL) Blue |
| DJR | BCBS of Minnesota (MN) |
| DJS | Unassigned Prefix |
| DJT | Unassigned Prefix |
| DJU | Unassigned Prefix |
| DJV | Anthem Blue Cross(BC) of California (CA) |
| DJW | Blue shield(BS) of California (CA) |
| DJX | BCBS of Minnesota (MN) |
| DJY | Unassigned Prefix |
| DJZ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DKA | Wellmark |
| DKB | Unassigned Prefix |
| DKC | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DKD | Wellmark |
| DKE | BCBS of North Carolina (NC) |
| DKF | BCBS of South Carolina (SC) / Southcarolinablues |
| DKG | Unassigned Prefix |
| DKH | BCBS of North Carolina (NC) |
| DKI | Wellmark |
| DKJ | Capital Blue Cross of Pennsylvania (PA) |
| DKK | BCBS of Illinois (IL) |
| DKL | Unassigned Prefix |
| DKM | BCBS Blue Care Network Michigan (MI) |
| DKN | Unassigned Prefix |
| DKO | BCBS of South Carolina (SC) / Southcarolinablues |
| DKP | BCBS Blue Care Network Michigan (MI) |
| DKQ | BCBS of South Carolina (SC) / Southcarolinablues |
| DKR | BCBS of Minnesota (MN) |
| DKS | BCBS Blue Care Network Michigan (MI) |
| DKT | Wellmark |
| DKU | Unassigned Prefix |
| DKV | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DKW | Wellmark |
| DKX | Unassigned Prefix |
| DKY | BCBS of North Carolina (NC) |
| DKZ | Anthem Blue Cross(BC) of California (CA) |
| DLA | Wellmark |
| DLB | Anthem BCBS of Ohio (OH) |
| DLC | Unassigned Prefix |
| DLD | Anthem Blue Cross(BC) of California (CA) |
| DLE | Blue Cross (BC) of Idaho (ID) |
| DLF | Unassigned Prefix |
| DLG | BCBS of Tennessee (TN) |
| DLH | BCBS of Tennessee (TN) |
| DLI | Anthem Blue Cross(BC) of California (CA) |
| DLJ | Blue Cross (BC) of Idaho (ID) |
| DLK | Capital Blue Cross of Pennsylvania (PA) |
| DLL | Wellmark |
| DLM | Highmark BCBS of Pennsylvania (PA) |
| DLN | Anthem BCBS of Wisconsin (WI) |
| DLO | BCBS Blue Care Network Michigan (MI) |
| DLP | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DLQ | Anthem Blue Cross(BC) of California (CA) |
| DLR | BCBS of Nebraska (NE) |
| DLS | Unassigned Prefix |
| DLT | BCBS of Illinois (IL) |
| DLU | Anthem Blue Cross(BC) of California (CA) |
| DLV | Anthem BCBS of Ohio (OH) |
| DLW | Unassigned Prefix |
| DLX | BCBS of Illinois (IL) |
| DLY | Unassigned Prefix |
| DLZ | BCBS of Tennessee (TN) |
| DMA | BCBS of Illinois (IL) |
| DMB | Unassigned Prefix |
| DMC | BCBS of Nebraska (NE) |
| DMD | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DME | BCBS of Illinois (IL) |
| DMF | Unassigned Prefix |
| DMG | BCBS of Kansas City |
| DMH | BCBS Blue Care Network Michigan (MI) |
| DMI | BCBS of South Carolina (SC) / Southcarolinablues |
| DMJ | Unassigned Prefix |
| DMK | Unassigned Prefix |
| DML | BCBS of Minnesota (MN) |
| DMM | BCBS Blue Care Network Michigan (MI) |
| DMN | BCBS of Massachusetts (MA) |
| DMO | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DMP | Horizon BCBS of New Jersey (NJ) |
| DMQ | Empire BCBS of New York (NY) |
| DMR | BCBS of Western New York (WNY) |
| DMS | Unassigned Prefix |
| DMT | BCBS of Massachusetts (MA) |
| DMU | Unassigned Prefix |
| DMV | BCBS of Illinois (IL) |
| DMW | Wellmark |
| DMX | Blue Cross (BC) of Idaho (ID) |
| DMY | BCBS of Illinois (IL) |
| DMZ | Wellmark |
| DNA | Unassigned Prefix |
| DNB | BCBS of Texas (TX) |
| DNC | Wellmark |
| DND | Blue shield(BS) of California (CA) |
| DNE | BCBS of South Carolina (SC) / Southcarolinablues |
| DNF | Wellmark |
| DNG | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DNH | BCBS of Massachusetts (MA) |
| DNI | Florida (FL) Blue |
| DNJ | Unassigned Prefix |
| DNK | Unassigned Prefix |
| DNL | BCBS of Texas (TX) |
| DNM | BCBS of South Carolina (SC) / Southcarolinablues |
| DNN | BCBS of Texas (TX) |
| DNO | BCBS Blue Care Network Michigan (MI) |
| DNP | Unassigned Prefix |
| DNQ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DNR | Highmark BCBS of Pennsylvania (PA) |
| DNS | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DNT | Capital Blue Cross of Pennsylvania (PA) |
| DNU | Unassigned Prefix |
| DNV | Highmark BCBS of Pennsylvania (PA) |
| DNW | BCBS Blue Care Network Michigan (MI) |
| DNX | BCBS of Alabama (AL) |
| DNY | Unassigned Prefix |
| DNZ | Anthem BCBS of Ohio (OH) |
| DOA | Wellmark |
| DOB | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DOC | BCBS Blue Care Network Michigan (MI) |
| DOD | Florida (FL) Blue |
| DOE | Anthem BCBS of Indiana (IN) |
| DOF | BCBS Blue Care Network Michigan (MI) |
| DOG | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DOH | BCBS of South Carolina (SC) / Southcarolinablues |
| DOI | BCBS of South Carolina (SC) / Southcarolinablues |
| DOJ | Florida (FL) Blue |
| DOK | Wellmark |
| DOL | Wellmark |
| DOM | Anthem BCBS of Georgia (GA) |
| DON | BCBS of Minnesota (MN) |
| DOO | Unassigned Prefix |
| DOP | BCBS Blue Care Network Michigan (MI) |
| DOQ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DOR | Unassigned Prefix |
| DOS | BCBS Blue Care Network Michigan (MI) |
| DOT | Unassigned Prefix |
| DOU | BCBS Blue Care Network Michigan (MI) |
| DOV | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DOW | Florida (FL) Blue |
| DOX | Wellmark |
| DOY | Anthem BCBS of Ohio (OH) |
| DOZ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DPA | Anthem Blue Cross(BC) of California (CA) |
| DPB | Florida (FL) Blue |
| DPC | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DPD | BCBS of Nebraska (NE) |
| DPE | Empire BCBS of New York (NY) |
| DPF | BCBS of Alabama (AL) |
| DPG | Wellmark |
| DPH | Unassigned Prefix |
| DPI | Anthem Blue Cross(BC) of California (CA) |
| DPJ | Unassigned Prefix |
| DPK | Unassigned Prefix |
| DPL | Unassigned Prefix |
| DPM | BCBS of Illinois (IL) |
| DPN | Unassigned Prefix |
| DPO | BCBS of North Carolina (NC) |
| DPP | Anthem BCBS of Missouri (MO) |
| DPQ | Unassigned Prefix |
| DPR | BCBS Blue Care Network Michigan (MI) |
| DPS | Anthem Blue Cross(BC) of California (CA) |
| DPT | Highmark BCBS of Delaware (DE) |
| DPU | BCBS Blue Care Network Michigan (MI) |
| DPV | Unassigned Prefix |
| DPW | BCBS of Texas (TX) |
| DPX | Unassigned Prefix |
| DPY | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DPZ | Unassigned Prefix |
| DQA | Anthem Blue Cross(BC) of California (CA) |
| DQB | Wellmark |
| DQC | BCBS of Illinois (IL) |
| DQD | BCBS of Louisiana(LA) |
| DQE | Unassigned Prefix |
| DQF | Unassigned Prefix |
| DQG | Wellmark |
| DQH | Wellmark |
| DQI | Blue shield(BS) of California (CA) |
| DQJ | Anthem BCBS of Colorado (CO) |
| DQK | Unassigned Prefix |
| DQL | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DQM | Highmark BCBS of Delaware (DE) |
| DQN | BCBS of Western New York (WNY) |
| DQO | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DQP | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DQQ | Unassigned Prefix |
| DQR | Unassigned Prefix |
| DQS | Anthem BCBS of Wisconsin (WI) |
| DQT | Anthem BCBS of Wisconsin (WI) |
| DQU | Unassigned Prefix |
| DQV | Unassigned Prefix |
| DQW | Unassigned Prefix |
| DQX | Unassigned Prefix |
| DQY | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DQZ | Unassigned Prefix |
| DRA | Anthem BCBS of Wisconsin (WI) |
| DRB | BCBS of Alabama (AL) |
| DRC | BCBS of Massachusetts (MA) |
| DRD | Anthem Blue Cross(BC) of California (CA) |
| DRE | BCBS of Texas (TX) |
| DRF | BCBS of Minnesota (MN) |
| DRG | Anthem Blue Cross(BC) of California (CA) |
| DRH | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DRI | BCBS of North Carolina (NC) |
| DRJ | BCBS of North Carolina (NC) |
| DRK | Unassigned Prefix |
| DRL | Unassigned Prefix |
| DRM | Highmark BCBS of Pennsylvania (PA) |
| DRN | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DRO | Wellmark |
| DRP | Unassigned Prefix |
| DRQ | Unassigned Prefix |
| DRR | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DRS | Unassigned Prefix |
| DRT | Unassigned Prefix |
| DRU | Anthem BCBS of Missouri (MO) |
| DRV | BCBS of Illinois (IL) |
| DRW | Wellmark |
| DRX | BCBS of Alabama (AL) |
| DRY | Anthem BCBS of Indiana (IN) |
| DRZ | Anthem BCBS of Virginia (VA) |
| DSA | Unassigned Prefix |
| DSB | Wellmark |
| DSC | Unassigned Prefix |
| DSD | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DSE | Anthem BCBS of Missouri (MO) |
| DSF | Blue shield(BS) of California (CA) |
| DSG | Unassigned Prefix |
| DSH | BCBS Blue Care Network Michigan (MI) |
| DSI | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DSJ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DSK | BCBS of Illinois (IL) |
| DSL | Unassigned Prefix |
| DSM | Regence BCBS |
| DSN | Unassigned Prefix |
| DSO | Unassigned Prefix |
| DSP | Anthem BCBS of Wisconsin (WI) |
| DSQ | Anthem BCBS of Ohio (OH) |
| DSR | Highmark BCBS of Delaware (DE) |
| DSS | Anthem BCBS of Virginia (VA) |
| DST | BCBS of Illinois (IL) |
| DSU | Anthem BCBS of Georgia (GA) |
| DSV | Unassigned Prefix |
| DSW | BCBS of Kansas City |
| DSX | Horizon BCBS of New Jersey (NJ) |
| DSY | BCBS of Kansas City |
| DSZ | BCBS of North Dakota (ND) |
| DTA | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DTB | Horizon BCBS of New Jersey (NJ) |
| DTC | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DTD | BCBS of Nebraska (NE) |
| DTE | Anthem BCBS of Ohio (OH) |
| DTF | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DTG | Unassigned Prefix |
| DTH | BCBS of Illinois (IL) |
| DTI | Unassigned Prefix |
| DTJ | Anthem BCBS of Virginia (VA) |
| DTK | Regence BCBS |
| DTL | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DTM | Anthem BCBS of Wisconsin (WI) |
| DTN | Anthem BCBS of Connecticut (CT) |
| DTO | BCBS Blue Care Network Michigan (MI) |
| DTP | Unassigned Prefix |
| DTQ | Unassigned Prefix |
| DTR | Unassigned Prefix |
| DTS | Unassigned Prefix |
| DTT | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DTU BCBS Prefix | Anthem BCBS of Connecticut (CT) |
| DTV | BCBS of Illinois (IL) |
| DTW | Anthem BCBS of Georgia (GA) |
| DTX | Unassigned Prefix |
| DTY | Anthem BCBS of Connecticut (CT) |
| DTZ | BCBS Blue Care Network Michigan (MI) |
| DUA | BCBS Blue Care Network Michigan (MI) |
| DUB | BCBS Blue Care Network Michigan (MI) |
| DUC | BCBS of Tennessee (TN) |
| DUD | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DUE | Florida (FL) Blue |
| DUF | BCBS Blue Care Network Michigan (MI) |
| DUG | Horizon BCBS of New Jersey (NJ) |
| DUH | BCBS of Massachusetts (MA) |
| DUI | Unassigned Prefix |
| DUJ | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DUK | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DUL | BCBS of Minnesota (MN) |
| DUM | Wellmark |
| DUN | BCBS of Alabama (AL) |
| DUO | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DUP | Highmark BCBS of Delaware (DE) |
| DUQ | BCBS Blue Care Network Michigan (MI) |
| DUR | BCBS of Illinois (IL) |
| DUS BCBS Prefix | Anthem BCBS of Colorado (CO) |
| DUT | Unassigned Prefix |
| DUU | BCBS Blue Care Network Michigan (MI) |
| DUV | Florida (FL) Blue |
| DUW | BCBS Blue Care Network Michigan (MI) |
| DUX | BCBS of Kansas |
| DUY | BCBS Blue Care Network Michigan (MI) |
| DUZ | BCBS of North Carolina (NC) |
| DVA | Anthem BCBS of Indiana (IN) |
| DVB | Empire BCBS of New York (NY) |
| DVC | BCBS of Louisiana(LA) |
| DVD | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DVE | Unassigned Prefix |
| DVF | Anthem BCBS of Wisconsin (WI) |
| DVG | BCBS of Illinois (IL) |
| DVH | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DVI | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DVJ | Wellmark |
| DVK | Unassigned Prefix |
| DVL | Unassigned Prefix |
| DVM | Anthem BCBS of Wisconsin (WI) |
| DVN | Anthem Blue Cross(BC) of California (CA) |
| DVO | Unassigned Prefix |
| DVP | BCBS Blue Care Network Michigan (MI) |
| DVQ | Unassigned Prefix |
| DVR | BCBS of Illinois (IL) |
| DVS | Highmark BCBS of Pennsylvania (PA) |
| DVT | Unassigned Prefix |
| DVU | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DVV | Unassigned Prefix |
| DVW | Unassigned Prefix |
| DVX | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DVY | Unassigned Prefix |
| DVZ | BCBS of South Carolina (SC) / Southcarolinablues |
| DWA | BCBS Blue Care Network Michigan (MI) |
| DWB | BCBS of North Carolina (NC) |
| DWC | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWD | Florida (FL) Blue |
| DWE | Blue shield(BS) of California (CA) |
| DWF | BCBS of Illinois (IL) |
| DWG | BCBS of Western New York (WNY) |
| DWH | Unassigned Prefix |
| DWI | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWJ | Unassigned Prefix |
| DWK | Horizon BCBS of New Jersey (NJ) |
| DWL | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWM | BCBS Blue Care Network Michigan (MI) |
| DWN | Regence BCBS |
| DWO | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWP | BCBS of Illinois (IL) |
| DWQ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWR | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DWS | Wellmark |
| DWT | BCBS of Minnesota (MN) |
| DWU | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DWV | Unassigned Prefix |
| DWW | Unassigned Prefix |
| DWX | Unassigned Prefix |
| DWY | Anthem BCBS of Ohio (OH) |
| DWZ | Unassigned Prefix |
| DXA | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DXB | Anthem BCBS of Missouri (MO) |
| DXC | Anthem Blue Cross(BC) of California (CA) |
| DXD | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DXE | BCBS of Texas (TX) |
| DXF | Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA) |
| DXG | BCBS Blue Care Network Michigan (MI) |
| DXH | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DXI | Unassigned Prefix |
| DXJ | Unassigned Prefix |
| DXK | Premera BCBS of Alaska (AK) |
| DXL | Unassigned Prefix |
| DXM | Anthem BCBS of Virginia (VA) |
| DXN | BCBS of Texas (TX) |
| DXO | Unassigned Prefix |
| DXP BCBS Prefix | BCBS Blue Care Network Michigan (MI) |
| DXQ | Wellmark |
| DXR | Horizon BCBS of New Jersey (NJ) |
| DXS | Wellmark |
| DXT | Unassigned Prefix |
| DXU | BCBS of Massachusetts (MA) |
| DXV | Unassigned Prefix |
| DXW | BCBS of Kansas City |
| DXX | BCBS of Minnesota (MN) |
| DXY | BCBS of Alabama (AL) |
| DXZ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DYA | BCBS of Minnesota (MN) |
| DYB | Unassigned Prefix |
| DYC | Florida (FL) Blue |
| DYD | Florida (FL) Blue |
| DYE | BCBS of Illinois (IL) |
| DYF | BCBS of Illinois (IL) |
| DYG | BCBS Blue Care Network Michigan (MI) |
| DYH | Unassigned Prefix |
| DYI | Unassigned Prefix |
| DYJ | Unassigned Prefix |
| DYK | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DYL | Highmark BCBS of Pennsylvania (PA) |
| DYM | BCBS Blue Care Network Michigan (MI) |
| DYN | Unassigned Prefix |
| DYO | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DYP | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DYQ | Anthem BCBS of Wisconsin (WI) |
| DYR | Unassigned Prefix |
| DYS | Anthem Blue Cross(BC) of California (CA) |
| DYT | Anthem Blue Cross(BC) of California (CA) |
| DYU | Horizon BCBS of New Jersey (NJ) |
| DYV | Anthem BCBS of Wisconsin (WI) |
| DYW | Highmark BCBS of Delaware (DE) |
| DYX | BCBS of Alabama (AL) |
| DYY | Anthem BCBS of Ohio (OH) |
| DYZ | Unassigned Prefix |
| DZA | Empire BCBS of New York (NY) |
| DZB | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DZC | Wellmark |
| DZD | BCBS of Western New York (WNY) |
| DZE | Anthem BCBS of Georgia (GA) |
| DZF | Unassigned Prefix |
| DZG | Empire BCBS of New York (NY) |
| DZH | Highmark BCBS of Pennsylvania (PA) |
| DZI | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DZJ | BCBS of Alabama (AL) |
| DZK | Anthem BCBS of Missouri (MO) |
| DZL | Unassigned Prefix |
| DZM | BCBS of Minnesota (MN) |
| DZN | Anthem BCBS of Ohio (OH) |
| DZO | BCBS of Tennessee (TN) |
| DZP | BCBS of Minnesota (MN) |
| DZQ | Carefirst BCBS of Maryland (MD)/ District of Columbia (DC) and Northern Virginia (VA) |
| DZR | Unassigned Prefix |
| DZS | Unassigned Prefix |
| DZT | BCBS of Minnesota (MN) |
| DZU | Unassigned Prefix |
| DZV BCBS Prefix | Anthem BCBS of Ohio (OH) |
| DZW | BCBS Blue Care Network Michigan (MI) |
| DZX | BCBS of Massachusetts (MA) |
| DZY | Unassigned Prefix |
| DZZ | BCBS of Tennessee (TN) |
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