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 |
|---|---|---|---|---|---|
| 781-229 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-230 | BANDWIDTH.COM CLEC, LLC - MA | 990E | LEXINGTON | MA | |
| 781-231 | VERIZON NEW ENGLAND INC. | 9102 | SAUGUS | MA | |
| 781-232 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CANTON | MA | |
| 781-233 | VERIZON NEW ENGLAND INC. | 9102 | SAUGUS | MA | |
| 781-234 | PAETEC ITEL, LLC | 829J | DEDHAM | MA | |
| 781-235 | VERIZON NEW ENGLAND INC. | 9102 | WELLESLEY | MA | |
| 781-237 | VERIZON NEW ENGLAND INC. | 9102 | WELLESLEY | MA | |
| 781-238 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-239 | VERIZON NEW ENGLAND INC. | 9102 | WELLESLEY | MA | |
| 781-240 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LEXINGTON | MA | |
| 781-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REVERE | MA | |
| 781-242 | METROPCS, INC. | 5562 | HULL | MA | |
| 781-243 | METROPCS, INC. | 5562 | HANOVER | MA | |
| 781-245 | VERIZON NEW ENGLAND INC. | 9102 | WAKEFIELD | MA | |
| 781-246 | VERIZON NEW ENGLAND INC. | 9102 | WAKEFIELD | MA | |
| 781-247 | PAETEC ITEL, LLC | 829J | NEEDHAM | MA | |
| 781-248 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LYNN | MA | |
| 781-249 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WALTHAM | MA | |
| 781-251 | VERIZON NEW ENGLAND INC. | 9102 | DEDHAM | MA | |
| 781-253 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SHARON | MA | |
| 781-254 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LYNN | MA | |
| 781-255 | VERIZON NEW ENGLAND INC. | 9102 | NORWOOD | MA | |
| 781-256 | VERIZON NEW ENGLAND INC. | 9102 | WALTHAM | MA | |
| 781-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LINCOLN | MA | |
| 781-258 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA | |
| 781-259 | VERIZON NEW ENGLAND INC. | 9102 | LINCOLN | MA | |
| 781-260 | VERIZON NEW ENGLAND INC. | 9102 | XXXXXXXXXX | MA | |
| 781-261 | VERIZON NEW ENGLAND INC. | 9102 | ROCKLAND | MA | |
| 781-262 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-263 | VERIZON NEW ENGLAND INC. | 9102 | WELLESLEY | MA | |
| 781-265 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BURLINGTON | MA | |
| 781-266 | TC SYSTEMS, INC. | 7135 | LEXINGTON | MA | |
| 781-268 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LYNN | MA | |
| 781-269 | RCN TELECOM SERVICES, INC. - MA | 7619 | NORWOOD | MA | |
| 781-270 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-271 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-272 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-273 | VERIZON NEW ENGLAND INC. | 9102 | BURLINGTON | MA | |
| 781-274 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-275 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-276 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-277 | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WEYMOUTH | MA | |
| 781-278 | VERIZON NEW ENGLAND INC. | 9102 | NORWOOD | MA | |
| 781-279 | VERIZON NEW ENGLAND INC. | 9102 | STONEHAM | MA | |
| 781-280 | VERIZON NEW ENGLAND INC. | 9102 | LEXINGTON | MA | |
| 781-281 | COMCAST IP PHONE, LLC | 318J | WOBURN | MA | |
| 781-282 | VERIZON NEW ENGLAND INC. | 9102 | MALDEN | MA | |
| 781-283 | VERIZON NEW ENGLAND INC. | 9102 | WELLESLEY | MA | |
| 781-284 | VERIZON NEW ENGLAND INC. | 9102 | REVERE | 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.