NumberResearchRecent thousands-block assignments
16 blocks assigned in June 2026 · 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, June 2026 — NPA 580
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-06-30 | 580-239-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OK | 409F | ATOKA | OK |
| 2026-06-26 | 580-457-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OK | 409F | LAWTON | OK |
| 2026-06-26 | 580-457-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OK | 409F | LAWTON | OK |
| 2026-06-26 | 580-457-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LAWTON | OK |
| 2026-06-26 | 580-956-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OK | 409F | LAWTON | OK |
| 2026-06-22 | 580-800-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLAIR | OK |
| 2026-06-16 | 580-672-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MADILL | OK |
| 2026-06-16 | 580-872-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MADILL | OK |
| 2026-06-15 | 580-791-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WATONGA | OK |
| 2026-06-12 | 580-278-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ENID | OK |
| 2026-06-12 | 580-845-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TUPELO | OK |
| 2026-06-12 | 580-884-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHEROKEE | OK |
| 2026-06-09 | 580-754-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GUYMON | OK |
| 2026-06-03 | 580-869-3XXX | 3000–3999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | SOUTHMEADE | OK |
| 2026-06-02 | 580-640-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | TISHOMINGO | OK |
| 2026-06-02 | 580-640-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TISHOMINGO | 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.