NumberResearchRecent thousands-block assignments
0 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, all time — NPA 774
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-09-09 | 774-436-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WORCESTER | MA |
| 2019-03-27 | 774-374-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MARLBORO | MA |
| 2019-03-27 | 774-379-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | FALL RIVER | MA |
| 2019-03-27 | 774-379-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FALL RIVER | MA |
| 2019-03-27 | 774-612-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FALMOUTH | MA |
| 2019-03-27 | 774-612-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | FALMOUTH | MA |
| 2019-03-27 | 774-703-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LEICESTER | MA |
| 2019-03-27 | 774-765-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | FOXBORO | MA |
| 2019-03-27 | 774-765-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | FOXBORO | MA |
| 2019-03-27 | 774-804-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | MILFORD | MA |
| 2017-06-12 | 774-231-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | NATICK | MA |
| 2017-06-12 | 774-284-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MANSFIELD | MA |
| 2017-06-12 | 774-341-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HOLLISTON | MA |
| 2017-06-12 | 774-363-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SAGAMORE | MA |
| 2017-06-12 | 774-369-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MARLBORO | MA |
| 2017-06-12 | 774-498-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | FRAMINGHAM | MA |
| 2017-06-12 | 774-501-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | TAUNTON | MA |
| 2017-06-12 | 774-513-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | WESTBORO | MA |
| 2017-06-12 | 774-541-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WALPOLE | MA |
| 2017-06-12 | 774-561-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ORLEANS | MA |
| 2017-06-12 | 774-602-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | OSTERVILLE | MA |
| 2017-06-12 | 774-613-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | FRANKLIN | MA |
| 2017-06-12 | 774-643-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NO ATTLEBO | MA |
| 2017-06-12 | 774-703-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LEICESTER | MA |
| 2017-06-12 | 774-737-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MILFORD | MA |
| 2017-06-12 | 774-765-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FOXBORO | MA |
| 2017-06-12 | 774-778-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WORCESTER | MA |
| 2017-06-08 | 774-216-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | BREWSTER | MA |
| 2017-06-08 | 774-281-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BRIDGEWTR | MA |
| 2017-06-08 | 774-340-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | ATTLEBORO | MA |
| 2017-06-08 | 774-352-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DENNIS | MA |
| 2017-06-08 | 774-539-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BROCKTON | MA |
| 2017-06-08 | 774-568-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | EASTON | MA |
| 2017-06-08 | 774-704-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FALL RIVER | MA |
| 2016-05-27 | 774-212-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DENNIS | MA |
| 2016-05-27 | 774-222-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BRIDGEWTR | MA |
| 2016-05-27 | 774-231-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NATICK | MA |
| 2016-05-27 | 774-235-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FRANKLIN | MA |
| 2016-05-27 | 774-250-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | EASTON | MA |
| 2016-05-27 | 774-284-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MANSFIELD | MA |
| 2016-05-27 | 774-300-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | FOXBORO | MA |
| 2016-05-27 | 774-302-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | BUZZARDSBY | MA |
| 2016-05-27 | 774-336-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BREWSTER | MA |
| 2016-05-27 | 774-340-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ATTLEBORO | MA |
| 2016-05-27 | 774-342-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SPENCER | MA |
| 2016-05-27 | 774-343-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PLYMOUTH | MA |
| 2016-05-27 | 774-347-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NOBROOKFLD | MA |
| 2016-05-27 | 774-385-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | RUTLAND | MA |
| 2016-05-27 | 774-408-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | HARWICH | MA |
| 2016-05-27 | 774-409-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | TAUNTON | 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.