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 401
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 |
|---|---|---|---|---|---|---|---|
| 2022-03-22 | 401-589-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | W WARWICK | RI |
| 2022-03-08 | 401-646-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HOPEVALLEY | RI |
| 2022-03-08 | 401-656-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WESTERLY | RI |
| 2022-03-08 | 401-777-1XXX | 1000–1999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LTLCOMPTON | RI |
| 2022-03-08 | 401-900-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PROVIDENCE | RI |
| 2022-03-01 | 401-424-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BRISTOL | RI |
| 2022-02-08 | 401-625-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | TIVERTON | RI |
| 2022-02-07 | 401-267-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NO KINGSTN | RI |
| 2022-02-07 | 401-628-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WARREN | RI |
| 2022-02-07 | 401-968-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WGLOCESTER | RI |
| 2022-01-31 | 401-587-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SCITUATE | RI |
| 2021-10-07 | 401-661-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NARRAGNSTT | RI |
| 2021-09-29 | 401-358-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PASCOAG | RI |
| 2021-09-28 | 401-423-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | JAMESTOWN | RI |
| 2021-09-28 | 401-800-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BLOCK IS | RI |
| 2021-09-03 | 401-376-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CUMBLND HL | RI |
| 2021-09-03 | 401-472-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PORTSMOUTH | RI |
| 2021-09-02 | 401-773-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WARWICK | RI |
| 2021-08-26 | 401-362-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PAWTUCKET | RI |
| 2021-08-19 | 401-269-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | COVENTRY | RI |
| 2021-08-19 | 401-373-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CENTREDALE | RI |
| 2021-08-06 | 401-526-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WOONSOCKET | RI |
| 2021-08-06 | 401-542-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GREENWICH | RI |
| 2021-08-06 | 401-843-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NEWPORT | RI |
| 2021-04-21 | 401-746-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CAROLINA | RI |
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.