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 |
|---|---|---|---|---|---|---|---|
| 2008-07-21 | 501-916-5XXX | 5000–5999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | LITTLEROCK | AR |
| 2008-07-21 | 501-916-6XXX | 6000–6999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | LITTLEROCK | AR |
| 2008-07-21 | 501-916-8XXX | 8000–8999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | LITTLEROCK | AR |
| 2008-07-18 | 501-314-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENBRIER | AR |
| 2008-07-17 | 501-291-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | LITTLEROCK | AR |
| 2008-07-01 | 501-285-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ENGLAND | AR |
| 2008-06-18 | 501-548-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2008-06-13 | 501-303-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BENTON | AR |
| 2008-06-13 | 501-358-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2008-05-29 | 501-463-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2008-05-23 | 501-691-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HEBER SPG | AR |
| 2008-05-12 | 501-203-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2008-05-12 | 501-205-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2008-05-12 | 501-396-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2008-05-12 | 501-574-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | BENTON | AR |
| 2008-05-12 | 501-781-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2008-05-12 | 501-781-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2008-05-08 | 501-207-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | SEARCY | AR |
| 2008-05-08 | 501-215-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | MORRILTON | AR |
| 2008-05-06 | 501-251-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2008-05-05 | 501-392-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | SYVNHLSHWD | AR |
| 2008-05-01 | 501-246-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2008-05-01 | 501-377-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2008-04-14 | 501-266-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LONOKE | AR |
| 2008-04-14 | 501-304-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | MALVERN | AR |
| 2008-04-10 | 501-613-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-03-27 | 501-287-1XXX | 1000–1999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | GREENBRIER | AR |
| 2008-03-25 | 501-227-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2008-03-24 | 501-215-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MORRILTON | AR |
| 2008-03-24 | 501-229-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MALVERN | AR |
| 2008-03-24 | 501-288-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEEBE | AR |
| 2008-03-24 | 501-760-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2008-03-17 | 501-319-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-03-17 | 501-319-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-03-17 | 501-319-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-03-17 | 501-319-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-03-14 | 501-615-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | LITTLEROCK | AR |
| 2008-03-06 | 501-246-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-03-06 | 501-246-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-03-05 | 501-762-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2008-03-05 | 501-762-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2008-02-20 | 501-757-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CLINTON | AR |
| 2008-02-14 | 501-613-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-02-13 | 501-628-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CABOT | AR |
| 2008-02-08 | 501-463-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2008-01-30 | 501-410-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-01-22 | 501-365-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | HEBER SPG | AR |
| 2008-01-10 | 501-764-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2008-01-04 | 501-476-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2008-01-03 | 501-463-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | 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.