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 |
|---|---|---|---|---|---|---|---|
| 2015-03-26 | 781-943-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WELLESLEY | MA |
| 2015-03-17 | 781-693-8XXX | 8000–8999 | Assigned | FREEDOM RING COMMUNICATIONS, LLC | 8468 | WALTHAM | MA |
| 2015-03-13 | 781-469-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LYNN | MA |
| 2015-03-13 | 781-469-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LYNN | MA |
| 2015-03-13 | 781-469-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LYNN | MA |
| 2015-03-05 | 781-563-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BRYANTVL | MA |
| 2015-03-04 | 781-375-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | DEDHAM | MA |
| 2015-03-04 | 781-971-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BRAINTREE | MA |
| 2015-03-04 | 781-971-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BRAINTREE | MA |
| 2015-03-04 | 781-971-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BRAINTREE | MA |
| 2015-02-26 | 781-779-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | READING | MA |
| 2015-02-25 | 781-298-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | CANTON | MA |
| 2015-02-25 | 781-385-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HINGHAM | MA |
| 2015-02-25 | 781-435-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | STONEHAM | MA |
| 2015-02-25 | 781-440-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NORWOOD | MA |
| 2015-02-25 | 781-600-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BRAINTREE | MA |
| 2015-02-25 | 781-625-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WINCHESTER | MA |
| 2015-02-25 | 781-670-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | READING | MA |
| 2015-02-25 | 781-695-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | STOUGHTON | MA |
| 2015-02-25 | 781-797-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MARBLEHEAD | MA |
| 2015-02-25 | 781-951-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | REVERE | MA |
| 2015-02-24 | 781-209-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | WALTHAM | MA |
| 2015-02-24 | 781-280-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LEXINGTON | MA |
| 2015-02-24 | 781-421-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ROCKLAND | MA |
| 2015-02-24 | 781-484-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SAUGUS | MA |
| 2015-02-24 | 781-510-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | RANDOLPH | MA |
| 2015-02-24 | 781-587-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WAKEFIELD | MA |
| 2015-02-24 | 781-705-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WELLESLEY | MA |
| 2015-02-24 | 781-720-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MELROSE | MA |
| 2015-02-24 | 781-831-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | KINGSTON | MA |
| 2015-02-20 | 781-262-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BURLINGTON | MA |
| 2015-02-19 | 781-491-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOBURN | MA |
| 2015-02-13 | 781-907-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALTHAM | MA |
| 2015-02-05 | 781-776-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | LYNNFIELD | MA |
| 2015-01-26 | 781-684-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | WALTHAM | MA |
| 2015-01-23 | 781-513-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LYNN | MA |
| 2015-01-08 | 781-591-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WELLESLEY | MA |
| 2015-01-02 | 781-510-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | RANDOLPH | MA |
| 2014-12-23 | 781-469-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | LYNN | MA |
| 2014-12-23 | 781-469-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | LYNN | MA |
| 2014-12-23 | 781-552-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BURLINGTON | MA |
| 2014-12-23 | 781-552-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BURLINGTON | MA |
| 2014-12-11 | 781-277-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WEYMOUTH | MA |
| 2014-12-11 | 781-417-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | SAUGUS | MA |
| 2014-12-11 | 781-813-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SAUGUS | MA |
| 2014-12-10 | 781-381-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | DEDHAM | MA |
| 2014-12-10 | 781-381-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | DEDHAM | MA |
| 2014-12-04 | 781-557-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA |
| 2014-12-01 | 781-867-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | SHARON | MA |
| 2014-11-21 | 781-209-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | WALTHAM | 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.