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 |
|---|---|---|---|---|---|---|---|
| 2009-01-12 | 501-410-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2009-01-12 | 501-410-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2009-01-12 | 501-410-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2009-01-09 | 501-203-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | SEARCY | AR |
| 2009-01-09 | 501-208-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | MORRILTON | AR |
| 2008-12-29 | 501-410-1XXX | 1000–1999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | LITTLEROCK | AR |
| 2008-12-23 | 501-286-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CABOT | AR |
| 2008-11-25 | 501-229-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | MALVERN | AR |
| 2008-11-21 | 501-209-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | JESSIEVL | AR |
| 2008-11-21 | 501-229-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | MALVERN | AR |
| 2008-11-21 | 501-288-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | BEEBE | AR |
| 2008-11-21 | 501-291-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | LITTLEROCK | AR |
| 2008-11-21 | 501-291-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | LITTLEROCK | AR |
| 2008-11-21 | 501-291-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | LITTLEROCK | AR |
| 2008-11-21 | 501-303-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | BENTON | AR |
| 2008-11-21 | 501-365-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | HEBER SPG | AR |
| 2008-11-21 | 501-436-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | SYVNHLSHWD | AR |
| 2008-11-21 | 501-438-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | LONOKE | AR |
| 2008-11-21 | 501-463-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | HOTSPRINGS | AR |
| 2008-11-21 | 501-499-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | CONWAY | AR |
| 2008-11-21 | 501-825-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GREERSFRRY | AR |
| 2008-11-13 | 501-353-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-11-13 | 501-353-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-11-13 | 501-548-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2008-11-13 | 501-813-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-11-10 | 501-764-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2008-11-03 | 501-295-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2008-10-17 | 501-205-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2008-10-14 | 501-613-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-10-03 | 501-762-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2008-10-03 | 501-762-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2008-09-26 | 501-380-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SEARCY | AR |
| 2008-09-22 | 501-319-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2008-09-19 | 501-932-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CONWAY | AR |
| 2008-09-18 | 501-615-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-18 | 501-615-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-18 | 501-615-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-17 | 501-242-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | MORRILTON | AR |
| 2008-09-11 | 501-463-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2008-09-05 | 501-251-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-05 | 501-257-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-05 | 501-257-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-05 | 501-265-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2008-09-05 | 501-365-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HEBER SPG | AR |
| 2008-09-02 | 501-392-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SYVNHLSHWD | AR |
| 2008-08-13 | 501-613-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2008-08-05 | 501-574-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BENTON | AR |
| 2008-08-04 | 501-813-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2008-07-25 | 501-823-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF ARKANSAS, LLC - AR | 7264 | LITTLEROCK | AR |
| 2008-07-21 | 501-916-3XXX | 3000–3999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | LITTLEROCK | 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.