NumberResearchRecent prefix assignments
352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 781-285 | TC SYSTEMS, INC. | 7135 | DUXBURY | MA | |
| 781-286 | VERIZON NEW ENGLAND INC. | 9102 | REVERE | MA | |
| 781-287 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA | |
| 781-288 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MALDEN | MA | |
| 781-289 | VERIZON NEW ENGLAND INC. | 9102 | REVERE | MA | |
| 781-290 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA | |
| 781-291 | METROPCS, INC. | 5562 | DUXBURY | MA | |
| 781-292 | VERIZON NEW ENGLAND INC. | 9102 | NEEDHAM | MA | |
| 781-293 | VERIZON NEW ENGLAND INC. | 9102 | BRYANTVL | MA | |
| 781-294 | VERIZON NEW ENGLAND INC. | 9102 | BRYANTVL | MA | |
| 781-295 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WAKEFIELD | MA | |
| 781-296 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WALTHAM | MA | |
| 781-297 | VERIZON NEW ENGLAND INC. | 9102 | STOUGHTON | MA | |
| 781-298 | TC SYSTEMS, INC. | 7135 | CANTON | MA | |
| 781-301 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LEXINGTON | MA | |
| 781-302 | TC SYSTEMS, INC. | 7135 | CANTON | MA | |
| 781-303 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRAINTREE | MA | |
| 781-304 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WELLESLEY | MA | |
| 781-305 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WOBURN | MA | |
| 781-306 | VERIZON NEW ENGLAND INC. | 9102 | MEDFORD | MA | |
| 781-307 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SAUGUS | MA | |
| 781-308 | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | RANDOLPH | MA | |
| 781-309 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LYNN | MA | |
| 781-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | MA | |
| 781-312 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | HANOVER | MA | |
| 781-313 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BURLINGTON | MA | |
| 781-314 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA | |
| 781-316 | RCN TELECOM SERVICES, INC. - MA | 7619 | ARLINGTON | MA | |
| 781-317 | BANDWIDTH.COM CLEC, LLC - MA | 990E | WALTHAM | MA | |
| 781-318 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STOUGHTON | MA | |
| 781-319 | VERIZON NEW ENGLAND INC. | 9102 | MARSHFIELD | MA | |
| 781-320 | VERIZON NEW ENGLAND INC. | 9102 | DEDHAM | MA | |
| 781-321 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-322 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-323 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | LEXINGTON | MA | |
| 781-324 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-325 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | LEXINGTON | MA | |
| 781-326 | VERIZON NEW ENGLAND INC. | 9102 | DEDHAM | MA | |
| 781-327 | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | SHARON | MA | |
| 781-328 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | BURLINGTON | MA | |
| 781-329 | VERIZON NEW ENGLAND INC. | 9102 | DEDHAM | MA | |
| 781-331 | VERIZON NEW ENGLAND INC. | 9102 | WEYMOUTH | MA | |
| 781-332 | PAETEC ITEL, LLC | 829J | CANTON | MA | |
| 781-333 | PAETEC ITEL, LLC | 829J | MALDEN | MA | |
| 781-334 | VERIZON NEW ENGLAND INC. | 9102 | LYNNFIELD | MA | |
| 781-335 | VERIZON NEW ENGLAND INC. | 9102 | WEYMOUTH | MA | |
| 781-336 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | KINGSTON | MA | |
| 781-337 | VERIZON NEW ENGLAND INC. | 9102 | WEYMOUTH | MA | |
| 781-338 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-340 | VERIZON NEW ENGLAND INC. | 9102 | WEYMOUTH | MA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.