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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
603-303 A Raymond NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-304 A Enfield NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-305 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-306 A Lebanon NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-307 A North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-308 A Hanover NH HNVRNHSCDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-309 A Newport NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-310 A Bedford NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-312 A Dover NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-313 A Keene NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-314 A Manchester NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-315 A Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-316 A Milford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-317 A Milan NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-318 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-319 A Portsmouth NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-320 A Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-321 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-322 A West Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-323 A Tamworth NH TMWONHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-324 A Nashua NH MNCHNHCO40Z  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 122      
603-325 A New Boston NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-326 A Berlin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-327 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-328 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-329 A Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-330 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-331 A Colebrook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-332 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-333 A Concord NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-334 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-335 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-336 A Hinsdale NH HNDLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-337 A Rochester NH ROCHNHHIPS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-338 A Keene NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-339 A Derry NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-340 A Suncook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-341 A Merrimack NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-342 A Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-343 A Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-344 A Suncook NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-345 A Merrimack NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-346 A Plymouth NH MNCHNHAC9MD  321J HD CARRIER LLC 122      
603-347 A Kingston NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-348 A North Woodstock NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-349 A West Lebanon NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-350 A Milton NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-351 A Goffstown NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-352 A Keene NH KEENNHWADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-353 A Orford NH FARLVTML353  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-354 A Keene NH KEENNHWADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-355 A Keene NH KEENNHWADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-356 A North Conway NH NCWYNHKERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-357 A Keene NH KEENNHWAPS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-358 A Keene NH KEENNHWADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-359 A Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-360 A Orford NH MNCHNHCOXMZ  573F TOPSHAM COMMUNICATIONS, LLC 122      
603-361 A Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-362 A Hampstead NH ATSNNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-363 A Spofford NH SPFRNHMSRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-364 A Gilmanton Iron Works NH GLTNNHXARP0  0049 UNION TEL. CO. 122      
603-365 A Merrimack NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-366 A Laconia NH WERSNHSTRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-367 A Madison NH MDSNNHYARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-368 A Portsmouth NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-369 A Concord NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-370 A Candia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-371 A Peterborough NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-372 A Claremont NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-373 A Portsmouth NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-374 A Bartlett NH BRTLNHGERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-375 A Ashland NH MNCHNHCO42Z  793K TWC IP ENABLED SERVICES, LLC 122      
603-376 A Dover NH MNCHNHCO29Z  9748 AMERICAN MESSAGING SERVICES, LLC 122      
603-377 A Merrimack NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-378 A Plaistow NH PLSTNHMADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-379 A Rye Beach NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-380 A Portsmouth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-381 A West Lebanon NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-382 A Plaistow NH PLSTNHMADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-383 A Jackson NH JCSNNHTHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-384 A Goffstown NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-385 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-386 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-387 A Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-388 A Colebrook NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-389 A Durham NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-390 A Jefferson NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-391 A Manchester NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-392 A Winchester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-393 A Laconia NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-394 A South Hampton NH EXTRNHCEDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-395 A Exeter NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-396 A Merrimack NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-397 A Durham NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-398 A West Lebanon NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-399 A Westmoreland NH WMLDNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-400 A Hollis NH MNCHNHCO43Z  792K CHARTER IP ENABLED SERVICES, LLC 122      
603-401 A Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-402 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-403 A Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      

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

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