NumberResearchRecent thousands-block assignments
25 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 501
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 |
|---|---|---|---|---|---|---|---|
| 2025-12-15 | 501-587-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | LITTLEROCK | AR |
| 2025-12-12 | 501-216-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-12-12 | 501-576-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2025-12-12 | 501-578-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | FERNDALE | AR |
| 2025-12-12 | 501-586-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2025-12-12 | 501-760-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2025-12-11 | 501-331-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PERRYVILLE | AR |
| 2025-12-05 | 501-591-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-11-19 | 501-439-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ENGLAND | AR |
| 2025-11-17 | 501-583-0XXX | 0000–0999 | Assigned | WAVENATION, LLC | 700J | LITTLEROCK | AR |
| 2025-11-13 | 501-494-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JESSIEVL | AR |
| 2025-11-05 | 501-560-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | JACKSONVL | AR |
| 2025-11-04 | 501-573-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | CABOT | AR |
| 2025-11-04 | 501-582-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | BENTON | AR |
| 2025-10-28 | 501-559-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2025-10-28 | 501-576-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | CONWAY | AR |
| 2025-10-28 | 501-781-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | HOTSPRINGS | AR |
| 2025-10-27 | 501-999-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-10-14 | 501-260-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-10-14 | 501-476-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-10-14 | 501-476-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-10-14 | 501-476-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-10-08 | 501-573-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CABOT | AR |
| 2025-10-02 | 501-383-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2025-10-02 | 501-402-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
| 2025-10-02 | 501-429-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | HEBER SPG | AR |
| 2025-10-02 | 501-578-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | FERNDALE | AR |
| 2025-10-01 | 501-578-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FERNDALE | AR |
| 2025-09-30 | 501-419-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | ROSE BUD | AR |
| 2025-09-24 | 501-579-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGLAKE | AR |
| 2025-09-18 | 501-564-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | SYVNHLSHWD | AR |
| 2025-09-18 | 501-642-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-09-18 | 501-642-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-09-18 | 501-673-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | PINNACLE | AR |
| 2025-09-17 | 501-549-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PALARM | AR |
| 2025-09-11 | 501-867-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | MAUMELLE | AR |
| 2025-09-10 | 501-437-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LONOKE | AR |
| 2025-09-10 | 501-560-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSONVL | AR |
| 2025-09-10 | 501-645-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MORRILTON | AR |
| 2025-09-09 | 501-755-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | QUITMAN | AR |
| 2025-09-03 | 501-560-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | JACKSONVL | AR |
| 2025-09-03 | 501-999-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-08-25 | 501-522-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2025-08-25 | 501-559-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2025-08-25 | 501-576-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2025-08-25 | 501-576-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2025-08-25 | 501-576-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2025-08-20 | 501-527-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | LITTLEROCK | AR |
| 2025-08-20 | 501-561-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | LITTLEROCK | AR |
| 2025-08-12 | 501-460-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
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.