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 319
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 |
|---|---|---|---|---|---|---|---|
| 2022-03-25 | 319-776-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ROWLEY | IA |
| 2022-03-25 | 319-992-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | TIFFIN | IA |
| 2022-03-24 | 319-767-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | KEOKUK | IA |
| 2022-03-23 | 319-738-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | KESWICK | IA |
| 2022-03-23 | 319-946-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MOUNTUNION | IA |
| 2022-03-15 | 319-995-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WINFIELD | IA |
| 2022-03-14 | 319-566-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | RICHLAND | IA |
| 2022-03-14 | 319-633-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LONE TREE | IA |
| 2022-03-14 | 319-922-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SALEM | IA |
| 2022-03-10 | 319-733-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FARMINGTON | IA |
| 2022-03-10 | 319-997-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NEW LONDON | IA |
| 2022-03-08 | 319-636-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HAZLETON | IA |
| 2022-03-04 | 319-336-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HILLS | IA |
| 2022-03-04 | 319-543-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SOLON | IA |
| 2022-03-04 | 319-942-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HILLSBORO | IA |
| 2022-03-04 | 319-996-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HOUGHTON | IA |
| 2022-03-02 | 319-225-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AMANA | IA |
| 2022-03-02 | 319-322-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NORWAY | IA |
| 2022-03-02 | 319-867-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | IOWA CITY | IA |
| 2022-02-28 | 319-966-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GRANDVIEW | IA |
| 2022-02-24 | 319-588-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ARGYLE | IA |
| 2022-02-24 | 319-742-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DENMARK | IA |
| 2022-02-18 | 319-244-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELY | IA |
| 2022-02-18 | 319-675-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | OXFORD | IA |
| 2022-02-17 | 319-222-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CEDARFALLS | IA |
| 2022-02-17 | 319-262-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | KALONA | IA |
| 2022-02-17 | 319-282-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NO ENGLISH | IA |
| 2022-02-17 | 319-426-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FAIRBANK | IA |
| 2022-02-17 | 319-663-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BLAIRSTOWN | IA |
| 2022-02-17 | 319-746-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BRANDON | IA |
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.