NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2025-01-13 | 572-247-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2025-01-13 | 572-247-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2025-01-13 | 572-247-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2024-07-12 | 572-241-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2024-07-12 | 572-241-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2023-07-20 | 572-218-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | BRITTON | OK |
| 2023-07-14 | 572-218-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | BRITTON | OK |
| 2022-08-19 | 572-633-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | MIDWEST CY | OK |
| 2022-08-05 | 572-273-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | BETHANY | OK |
| 2022-04-27 | 572-910-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
| 2022-03-08 | 572-207-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | WELEETKA | OK |
| 2021-05-25 | 572-568-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | OKLA CITY | OK |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.