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National Destination Code:301

This is the United States National Destination Code:301 Area Code Database page list. You can click the title to browse the detail information.
Region Code: MD
Region Name City Sn from Sn to Carrier Name Number Type
Maryland Ashton 236 2320000 2320999 CORE COMM - MD G
Maryland Ashton 236 2321000 2321999 US LEC OF MD G
Maryland Ashton 236 2322000 2322999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2323000 2323999 BANDWIDTH.COM - MD G
Maryland Ashton 236 2324000 2324999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2325000 2325999 PAETEC COMM - MD G
Maryland Ashton 236 2326000 2326999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2327000 2327999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2328000 2328999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2329000 2329999 MCI WORLDCOM COMM MD G
Maryland Ashton 236 2600000 2600999 VERIZON MARYLAND INC G
Maryland Ashton 236 2601000 2601999 VERIZON MARYLAND INC G
Maryland Ashton 236 2602000 2602999 VERIZON MARYLAND INC G
Maryland Ashton 236 2603000 2603999 VERIZON MARYLAND INC G
Maryland Ashton 236 2604000 2604999 TW TELECOM OF MD G
Maryland Ashton 236 2605000 2605999 OMNIPOINT COMM CAP M
Maryland Ashton 236 2606000 2606999 GLOBAL TELECOM BKRS G
Maryland Ashton 236 2607000 2607999 VERIZON MARYLAND INC G
Maryland Ashton 236 2608000 2608999 VERIZON MARYLAND INC G
Maryland Ashton 236 2609000 2609999 VERIZON MARYLAND INC G
Maryland Ashton 236 4210000 4219999 VERIZON MARYLAND INC G
Maryland Ashton 236 4760000 4760999 LEVEL 3 COMM - MD G
Maryland Ashton 236 4761000 4761999 LEVEL 3 COMM - MD G
Maryland Ashton 236 4762000 4762999 VERIZON MARYLAND INC G
Maryland Ashton 236 4763000 4763999 OMNIPOINT COMM CAP M
Maryland Ashton 236 4764000 4764999 LEVEL 3 COMM - MD G
Maryland Ashton 236 4765000 4765999 LEVEL 3 COMM - MD G
Maryland Ashton 236 4766000 4766999 LEVEL 3 COMM - MD G
Maryland Ashton 236 4767000 4767999 VERIZON MARYLAND INC G
Maryland Ashton 236 4768000 4768999 VERIZON MARYLAND INC G
Maryland Ashton 236 4769000 4769999 VERIZON MARYLAND INC G
Maryland Ashton 236 5490000 5490999 OMNIPOINT COMM CAP M
Maryland Ashton 236 5491000 5491999 VERIZON MARYLAND INC G
Maryland Ashton 236 5492000 5492999 VERIZON MARYLAND INC X
Maryland Ashton 236 5493000 5493999 VERIZON MARYLAND INC G
Maryland Ashton 236 5494000 5494999 VERIZON MARYLAND INC G
Maryland Ashton 236 5495000 5495999 LOCAL ACCESS LLC-MD G
Maryland Ashton 236 5496000 5496999 VERIZON MARYLAND INC X
Maryland Ashton 236 5497000 5497999 CTC COMMS CORP. - MD G
Maryland Ashton 236 5498000 5498999 OMNIPOINT COMM CAP M
Maryland Ashton 236 5499000 5499999 OMNIPOINT COMM CAP M
Maryland Ashton 236 5700000 5709999 VERIZON MARYLAND INC G
Maryland Ashton 236 6580000 6580999 BALTIMORE-WAS TEL G
Maryland Ashton 236 6581000 6581999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6582000 6582999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6583000 6583999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6584000 6584999 TELEPORT COMM AM-DC X
Maryland Ashton 236 6585000 6585999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6586000 6586999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6587000 6587999 LEVEL 3 COMM - MD G
Maryland Ashton 236 6588000 6588999 OMNIPOINT COMM CAP M
Maryland Ashton 236 6589000 6589999 TELEPORT COMM AM-DC G
Maryland Ashton 236 7740000 7749999 VERIZON MARYLAND INC G
Maryland Ashton 236 8040000 8040999 PEERLESS NTWK - MD G
Maryland Ashton 236 8041000 8041999 PEERLESS NTWK - MD G
Maryland Ashton 236 8042000 8042999 BROADVOX-CLEC - MD G
Maryland Ashton 236 8043000 8043999 MCIMETRO ATS LLC G
Maryland Ashton 236 8044000 8044999 BROADVIEW NTWKS - MD G
Maryland Ashton 236 8045000 8045999 CENTURYLINK COMM G
Maryland Ashton 236 8046000 8046999 BROADVOX-CLEC - MD G
Maryland Ashton 236 8047000 8047999 OMNIPOINT COMM CAP M
Maryland Ashton 236 8048000 8048999 OMNIPOINT COMM CAP M
Maryland Ashton 236 8049000 8049999 MCIMETRO ATS LLC G
Maryland Ashton 236 9400000 9409999 VERIZON MARYLAND INC M
Maryland Ashton 238 3290000 3290999 PEERLESS NTWK - MD G
Maryland Ashton 238 3291000 3291999 PEERLESS NTWK - MD G
Maryland Ashton 238 3292000 3292999 BROADVOX-CLEC - MD G
Maryland Ashton 238 3293000 3293999 CAVALIER MID-ATL MD G
Maryland Ashton 238 3294000 3294999 NEUTRAL TANDEM - MD G
Maryland Ashton 238 3295000 3295999 BANDWIDTH.COM - MD G
Maryland Ashton 238 3296000 3296999 BROADVOX-CLEC - MD G
Maryland Ashton 238 3297000 3297999 CENTURYLINK COMM G
Maryland Ashton 238 3298000 3298999 BROADVOX-CLEC - MD G
Maryland Ashton 238 3299000 3299999 BALTIMORE-WAS TEL G
Maryland Ashton 238 8540000 8540999 VERIZON MARYLAND INC G
Maryland Ashton 238 8541000 8541999 VERIZON MARYLAND INC G
Maryland Ashton 238 8542000 8542999 VERIZON MARYLAND INC G
Maryland Ashton 238 8543000 8543999 VERIZON MARYLAND INC G
Maryland Ashton 238 8544000 8544999 VERIZON MARYLAND INC G
Maryland Ashton 238 8545000 8545999 VERIZON MARYLAND INC G
Maryland Ashton 238 8546000 8546999 VERIZON MARYLAND INC G
Maryland Ashton 238 8547000 8547999 VERIZON MARYLAND INC G
Maryland Ashton 238 8548000 8548999 VERIZON MARYLAND INC G
Maryland Ashton 238 8549000 8549999 VERIZON MARYLAND INC G
Maryland Baltimore 8780000 8789999 VERIZON MARYLAND INC G
Maryland Beltsville 4790000 4790999 MCI WORLDCOM COMM MD X
Maryland Beltsville 4791000 4791999 MCI WORLDCOM COMM MD G
Maryland Beltsville 4792000 4792999 MCI WORLDCOM COMM MD X
Maryland Beltsville 4793000 4793999 MCI WORLDCOM COMM MD G
Maryland Beltsville 4794000 4794999 MCI WORLDCOM COMM MD X
Maryland Beltsville 4796000 4796999 MCI WORLDCOM COMM MD X
Maryland Beltsville 4797000 4797999 MCI WORLDCOM COMM MD X
Maryland Beltsville 4799000 4799999 MCI WORLDCOM COMM MD X
Maryland Beltsville 7960000 7969999 VERIZON MARYLAND INC G
Maryland Berwyn 2060000 2069999 VERIZON MARYLAND INC G
Maryland Berwyn 2070000 2079999 USA MOBILITY WRLS M
Maryland Berwyn 2200000 2209999 VERIZON MARYLAND INC G
Maryland Berwyn 2860000 2869999 VERIZON MARYLAND INC G
Maryland Berwyn 3030000 3039999 USA MOBILITY WRLS M
Maryland Berwyn 3070000 3070999 VERIZON MARYLAND INC G