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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 781-341 | VERIZON NEW ENGLAND INC. | 9102 | STOUGHTON | MA | |
| 781-342 | VERIZON NEW ENGLAND INC. | 9102 | LYNNFIELD | MA | |
| 781-343 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | NEEDHAM | MA | |
| 781-344 | VERIZON NEW ENGLAND INC. | 9102 | STOUGHTON | MA | |
| 781-346 | PAETEC ITEL, LLC | 829J | LYNN | MA | |
| 781-347 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROCKLAND | MA | |
| 781-348 | VERIZON NEW ENGLAND INC. | 9102 | BRAINTREE | MA | |
| 781-349 | PAETEC ITEL, LLC | 829J | NORWOOD | MA | |
| 781-350 | TC SYSTEMS, INC. | 7135 | MEDFORD | MA | |
| 781-353 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | BRAINTREE | MA | |
| 781-354 | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LEXINGTON | MA | |
| 781-355 | ONVOY, LLC - MA | 892D | DEDHAM | MA | |
| 781-356 | VERIZON NEW ENGLAND INC. | 9102 | BRAINTREE | MA | |
| 781-357 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LEXINGTON | MA | |
| 781-358 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WINCHESTER | MA | |
| 781-359 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-360 | NORFOLK COUNTY INTERNET, INC. | 6083 | WAKEFIELD | MA | |
| 781-361 | RCN TELECOM SERVICES, INC. - MA | 7619 | KINGSTON | MA | |
| 781-364 | TC SYSTEMS, INC. | 7135 | CANTON | MA | |
| 781-365 | COMCAST IP PHONE, LLC | 318J | BURLINGTON | MA | |
| 781-366 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DEDHAM | MA | |
| 781-367 | METROPCS, INC. | 5562 | WOBURN | MA | |
| 781-368 | VERIZON NEW ENGLAND INC. | 9102 | WINCHESTER | MA | |
| 781-369 | COMCAST IP PHONE, LLC | 318J | WINCHESTER | MA | |
| 781-370 | TC SYSTEMS, INC. | 7135 | WALTHAM | MA | |
| 781-371 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WELLESLEY | MA | |
| 781-372 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-373 | COMCAST IP PHONE, LLC | 318J | WALTHAM | MA | |
| 781-374 | COMCAST IP PHONE, LLC | 318J | HINGHAM | MA | |
| 781-375 | TC SYSTEMS, INC. | 7135 | DEDHAM | MA | |
| 781-376 | VERIZON NEW ENGLAND INC. | 9102 | WOBURN | MA | |
| 781-377 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-378 | COMCAST IP PHONE, LLC | 318J | SCITUATE | MA | |
| 781-380 | VERIZON NEW ENGLAND INC. | 9102 | BRAINTREE | MA | |
| 781-381 | RCN TELECOM SERVICES, INC. - MA | 7619 | DEDHAM | MA | |
| 781-382 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LEXINGTON | MA | |
| 781-383 | VERIZON NEW ENGLAND INC. | 9102 | COHASSET | MA | |
| 781-385 | METROPCS, INC. | 5562 | HINGHAM | MA | |
| 781-386 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA | |
| 781-387 | AMERICAN MESSAGING SERVICES, LLC | 9748 | BURLINGTON | MA | |
| 781-388 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-389 | METROPCS, INC. | 5562 | WINCHESTER | MA | |
| 781-391 | VERIZON NEW ENGLAND INC. | 9102 | MEDFORD | MA | |
| 781-392 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA | |
| 781-393 | VERIZON NEW ENGLAND INC. | 9102 | MEDFORD | MA | |
| 781-394 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRAINTREE | MA | |
| 781-395 | VERIZON NEW ENGLAND INC. | 9102 | MEDFORD | MA | |
| 781-396 | VERIZON NEW ENGLAND INC. | 9102 | MEDFORD | MA | |
| 781-397 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-398 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | 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.