NumberResearchRecent thousands-block assignments
21 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, last 30 days — NPA 580
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 |
|---|---|---|---|---|---|---|---|
| 2026-05-29 | 580-275-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OK | 409F | CLINTON | OK |
| 2026-05-29 | 580-587-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | RATTAN | OK |
| 2026-05-21 | 580-457-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LAWTON | OK |
| 2026-05-21 | 580-457-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LAWTON | OK |
| 2026-05-21 | 580-692-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARDMORE | OK |
| 2026-05-21 | 580-692-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARDMORE | OK |
| 2026-05-21 | 580-787-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BOISE CITY | OK |
| 2026-05-21 | 580-787-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BOISE CITY | OK |
| 2026-05-20 | 580-557-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TONKAWA | OK |
| 2026-05-20 | 580-615-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DURANT | OK |
| 2026-05-19 | 580-557-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | TONKAWA | OK |
| 2026-05-19 | 580-748-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | ALVA | OK |
| 2026-05-14 | 580-631-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | BEAVER | OK |
| 2026-05-14 | 580-709-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | HOOKER | OK |
| 2026-05-12 | 580-756-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MARLOW | OK |
| 2026-05-12 | 580-794-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRVIEW | OK |
| 2026-05-05 | 580-692-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARDMORE | OK |
| 2026-04-30 | 580-817-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | TEXHOMA | OK |
| 2026-04-23 | 580-608-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGSTON | OK |
| 2026-04-16 | 580-640-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TISHOMINGO | OK |
| 2026-04-16 | 580-672-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MADILL | OK |
| 2026-04-09 | 580-586-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | WAURIKA | OK |
| 2026-04-09 | 580-602-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | HOLLIS | OK |
| 2026-04-07 | 580-230-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DURANT | OK |
| 2026-04-07 | 580-401-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PONCA CITY | OK |
| 2026-04-07 | 580-453-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ADA | OK |
| 2026-04-07 | 580-649-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALTUS | OK |
| 2026-04-07 | 580-771-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LAWTON | OK |
| 2026-04-07 | 580-830-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PERRY | OK |
| 2026-04-03 | 580-513-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATOKA | OK |
| 2026-04-01 | 580-997-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | CHEROKEE | OK |
| 2026-03-31 | 580-500-0XXX | 0000–0999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | CLINTON | OK |
| 2026-03-24 | 580-376-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | IDABEL | OK |
| 2026-03-20 | 580-457-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LAWTON | OK |
| 2026-03-19 | 580-692-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARDMORE | OK |
| 2026-03-16 | 580-228-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WAURIKA | OK |
| 2026-03-16 | 580-409-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | TUPELO | OK |
| 2026-03-16 | 580-410-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | WAPANUCKA | OK |
| 2026-03-16 | 580-450-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WALTERS | OK |
| 2026-03-16 | 580-469-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SAYRE | OK |
| 2026-03-16 | 580-502-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WILSON | OK |
| 2026-03-16 | 580-505-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | WOODWARD | OK |
| 2026-03-16 | 580-557-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | TONKAWA | OK |
| 2026-03-16 | 580-619-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SOPER | OK |
| 2026-03-16 | 580-627-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | STRATFORD | OK |
| 2026-03-16 | 580-640-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | TISHOMINGO | OK |
| 2026-03-16 | 580-650-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | WEATHERFD | OK |
| 2026-03-16 | 580-757-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RYAN | OK |
| 2026-03-16 | 580-758-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | WAUKOMIS | OK |
| 2026-03-13 | 580-268-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MARLAND | 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.