NumberResearchRecent thousands-block assignments
6 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, last 30 days — NPA 572
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 572-280-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OK | 409F | CHICKASHA | OK |
| 2026-09-17 | 572-283-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OK | 409F | BRITTON | OK |
| 2026-09-17 | 572-283-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OK | 409F | BRITTON | OK |
| 2026-09-17 | 572-283-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OK | 409F | BRITTON | OK |
| 2026-09-10 | 572-252-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | YUKON | OK |
| 2026-09-03 | 572-282-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OK | 409F | SHAWNEE | OK |
| 2026-07-09 | 572-358-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHANDLER | OK |
| 2026-06-15 | 572-282-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | SHAWNEE | OK |
| 2026-06-15 | 572-282-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | SHAWNEE | OK |
| 2026-06-12 | 572-224-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NORMAN | OK |
| 2026-06-12 | 572-226-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BINGER | OK |
| 2026-06-09 | 572-356-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MAYSVILLE | OK |
| 2026-06-09 | 572-384-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MOORE | OK |
| 2026-05-29 | 572-223-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OK | 409F | YUKON | OK |
| 2026-05-29 | 572-223-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OK | 409F | YUKON | OK |
| 2026-05-21 | 572-282-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OK | 409F | SHAWNEE | OK |
| 2026-05-19 | 572-358-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | CHANDLER | OK |
| 2026-05-14 | 572-281-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | CRESCENT | OK |
| 2026-05-11 | 572-472-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SEMINOLE | OK |
| 2026-05-04 | 572-210-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CEMENT | OK |
| 2026-04-24 | 572-220-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OK | 409F | STILLWATER | OK |
| 2026-04-23 | 572-270-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHAWNEE | OK |
| 2026-04-06 | 572-270-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | SHAWNEE | OK |
| 2026-04-06 | 572-280-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | CHICKASHA | OK |
| 2026-04-03 | 572-230-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WEWOKA | OK |
| 2026-04-01 | 572-230-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | WEWOKA | OK |
| 2026-03-31 | 572-600-6XXX | 6000–6999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | MAUD | OK |
| 2026-03-06 | 572-230-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | WEWOKA | OK |
| 2026-03-06 | 572-274-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | STILLWATER | OK |
| 2026-03-06 | 572-333-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | PAULS VLY | OK |
| 2026-03-06 | 572-472-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SEMINOLE | OK |
| 2026-03-06 | 572-732-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WYNNEWOOD | OK |
| 2026-03-05 | 572-200-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | FORT COBB | OK |
| 2026-03-05 | 572-210-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | CEMENT | OK |
| 2026-03-05 | 572-226-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | BINGER | OK |
| 2026-03-05 | 572-227-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MULHALL | OK |
| 2026-03-05 | 572-236-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | CHICKASHA | OK |
| 2026-03-05 | 572-358-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CHANDLER | OK |
| 2026-03-05 | 572-600-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MAUD | OK |
| 2026-03-05 | 572-726-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | ANADARKO | OK |
| 2026-02-25 | 572-278-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OKLA CITY | OK |
| 2026-02-25 | 572-278-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OKLA CITY | OK |
| 2026-02-11 | 572-210-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CEMENT | OK |
| 2026-02-05 | 572-997-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | KINGFISHER | OK |
| 2026-02-05 | 572-997-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | KINGFISHER | OK |
| 2026-01-22 | 572-280-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICKASHA | OK |
| 2026-01-22 | 572-280-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICKASHA | OK |
| 2026-01-16 | 572-236-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICKASHA | OK |
| 2026-01-16 | 572-236-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICKASHA | OK |
| 2026-01-13 | 572-832-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MUSTANG | 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.