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 572
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-11 | 572-202-0XXX | 0000–0999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ST LOUIS | OK |
| 2022-03-11 | 572-333-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PAULS VLY | OK |
| 2022-03-11 | 572-777-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HARRAH | OK |
| 2022-03-11 | 572-888-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PIEDMONT | OK |
| 2022-03-10 | 572-666-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EL RENO | OK |
| 2022-03-02 | 572-363-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CHICKASHA | OK |
| 2022-03-02 | 572-384-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MOORE | OK |
| 2022-03-02 | 572-633-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MIDWEST CY | OK |
| 2022-02-25 | 572-746-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BRITTON | OK |
| 2022-02-24 | 572-273-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BETHANY | OK |
| 2022-02-24 | 572-446-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ARCADIA | OK |
| 2022-02-24 | 572-726-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ANADARKO | OK |
| 2022-02-24 | 572-832-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MUSTANG | OK |
| 2021-04-12 | 572-568-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | OKLA CITY | OK |
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.