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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-404 A Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-405 A Somersworth NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-406 A Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-407 A Belmont NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-408 A Berlin NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-409 A Laconia NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-410 A Concord NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-412 A Plymouth NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-413 A Manchester NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-414 A Sunapee NH CNTCNHXARP0  853H TDS METROCOM, LLC - NH 122      
603-415 A Concord NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-416 A Raymond NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-417 A Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-418 A Exeter NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-419 A Suncook NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-420 A Merrimack NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-421 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-422 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-423 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-424 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-425 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-426 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-427 A Portsmouth NH PTMONHISPS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-428 A Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-429 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-430 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-431 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-432 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-433 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-434 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 A Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-436 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-437 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-438 A Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-02-09   
603-439 A Keene NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-440 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-441 A Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-442 A Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-443 A Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-444 A Littleton NH LTTNNHPLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-445 A North Walpole NH BLFLVTHERS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-446 A Marlow NH MRLWNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-447 A Conway NH CNWYNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-448 A Lebanon NH LBNNNHBARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-449 A Milan NH MILNNHPLRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-450 A Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-451 A Concord NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-452 A Conway NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-453 A Hampstead NH MNCHNHCO37Z  7421 AT&T - LOCAL 122      
603-454 A Sunapee NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-455 A Laconia NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-456 A Warner NH WRNRNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-457 A Dover NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-458 A Salem NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-459 A Nashua NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-460 A Deerfield NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-461 A Merrimack NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-462 A Deerfield NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-463 A Deerfield NH DRFDNHCCRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-464 A Hillsboro NH HLBONHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-465 A Hollis NH HLLSNHXARP0  3321 HOLLIS TELEPHONE COMPANY, INC. 122      
603-466 A Gorham NH GRHMNHLARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-467 A Manchester NH   6386 BELL ATLANTIC MOBILE, INC 122   2025-04-07   
603-468 A Seabrook NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-469 A Meriden NH MRDNNHXAPS0  0045 KEARSARGE TEL. CO. 122      
603-470 A Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-471 A Bedford NH BDFRNHAMRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-472 A Bedford NH BDFRNHAMRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-473 A Milton Mills NH MTMLNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-474 A Seabrook NH SBRKNHNRDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-475 A Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-476 A Center Sandwich NH MLBONHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-477 A Claremont NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-478 A Hillsboro Upper Village NH WEARNHXADS1  0039 GRANITE STATE TEL., INC. 122      
603-479 A Derry NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-480 A Manchester NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-481 A Plymouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-482 A Errol NH ERRLNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-483 A Candia NH CANDNHDERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-484 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-485 A Suncook NH SNCKNHPARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-486 A Manchester NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-487 A New Boston NH NBTNNHHPRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-488 A Bedford NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-489 A Hampstead NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-490 A Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-491 A Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-492 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-493 A Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-494 A Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-495 A Washington NH WEARNHXADS1  0039 GRANITE STATE TEL., INC. 122      
603-496 A Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 A Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-498 A Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-499 A Keene NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-500 A Tilton NH MNCHNHCO26Z  965H FRACTEL, LLC 122      
603-501 A Portsmouth NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-502 A Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-503 A Lancaster NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-504 A Claremont NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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