NumberResearchRecent thousands-block assignments
2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 781
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-07-08 | 781-410-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | DEDHAM | MA |
| 2016-06-23 | 781-660-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WEYMOUTH | MA |
| 2016-06-21 | 781-867-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | SHARON | MA |
| 2016-06-20 | 781-552-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | BURLINGTON | MA |
| 2016-06-17 | 781-829-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | HANOVER | MA |
| 2016-06-13 | 781-975-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | STOUGHTON | MA |
| 2016-06-03 | 781-759-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WOBURN | MA |
| 2016-06-01 | 781-361-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | KINGSTON | MA |
| 2016-06-01 | 781-362-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BURLINGTON | MA |
| 2016-06-01 | 781-421-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ROCKLAND | MA |
| 2016-06-01 | 781-485-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | REVERE | MA |
| 2016-06-01 | 781-580-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LYNNFIELD | MA |
| 2016-06-01 | 781-621-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WAKEFIELD | MA |
| 2016-06-01 | 781-667-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MALDEN | MA |
| 2016-06-01 | 781-701-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WALTHAM | MA |
| 2016-06-01 | 781-705-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WELLESLEY | MA |
| 2016-06-01 | 781-717-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WINCHESTER | MA |
| 2016-06-01 | 781-725-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NORWOOD | MA |
| 2016-06-01 | 781-739-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CANTON | MA |
| 2016-06-01 | 781-797-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | MARBLEHEAD | MA |
| 2016-06-01 | 781-840-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | STOUGHTON | MA |
| 2016-06-01 | 781-908-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HINGHAM | MA |
| 2016-06-01 | 781-909-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | READING | MA |
| 2016-06-01 | 781-923-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | COHASSET | MA |
| 2016-06-01 | 781-924-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HANOVER | MA |
| 2016-06-01 | 781-954-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | STONEHAM | MA |
| 2016-06-01 | 781-957-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MEDFORD | MA |
| 2016-06-01 | 781-980-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BRAINTREE | MA |
| 2016-05-26 | 781-853-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | REVERE | MA |
| 2016-05-26 | 781-853-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | REVERE | MA |
| 2016-05-23 | 781-732-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LYNN | MA |
| 2016-05-23 | 781-732-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LYNN | MA |
| 2016-05-20 | 781-660-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WEYMOUTH | MA |
| 2016-05-18 | 781-703-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | WALTHAM | MA |
| 2016-05-16 | 781-332-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | CANTON | MA |
| 2016-05-16 | 781-332-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | CANTON | MA |
| 2016-04-22 | 781-629-8XXX | 8000–8999 | Assigned | RCN TELECOM SERVICES, INC. - MA | 7619 | REVERE | MA |
| 2016-04-22 | 781-813-1XXX | 1000–1999 | Assigned | RCN TELECOM SERVICES, INC. - MA | 7619 | SAUGUS | MA |
| 2016-04-18 | 781-616-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-616-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-616-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-616-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-616-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-732-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 781-732-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 781-763-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-763-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-763-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-763-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
| 2016-04-18 | 781-763-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | ROCKLAND | MA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.