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 |
|---|---|---|---|---|---|---|---|
| 2010-01-19 | 501-286-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CABOT | AR |
| 2010-01-19 | 501-302-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | HEBER SPG | AR |
| 2010-01-19 | 501-413-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2010-01-19 | 501-448-3XXX | 3000–3999 | Assigned | WINDSTREAM COMMUNICATIONS, INC. - AR | 7656 | FERNDALE | AR |
| 2010-01-19 | 501-487-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SYVNHLSHWD | AR |
| 2010-01-12 | 501-294-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MORGANTON | AR |
| 2010-01-12 | 501-697-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2010-01-12 | 501-697-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2010-01-12 | 501-747-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-747-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-747-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-747-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-747-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-791-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2010-01-12 | 501-850-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-850-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2010-01-12 | 501-850-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-12-09 | 501-410-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-12-09 | 501-410-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-12-09 | 501-410-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-12-07 | 501-672-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BENTON | AR |
| 2009-12-07 | 501-697-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2009-11-23 | 501-286-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CABOT | AR |
| 2009-11-20 | 501-306-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | QUITMAN | AR |
| 2009-11-18 | 501-672-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2009-11-16 | 501-410-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2009-11-11 | 501-707-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-553-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-747-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-11-06 | 501-747-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-10-30 | 501-242-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | MORRILTON | AR |
| 2009-10-30 | 501-322-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | KENSETT | AR |
| 2009-10-30 | 501-414-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2009-10-19 | 501-203-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | SEARCY | AR |
| 2009-10-19 | 501-204-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | JESSIEVL | AR |
| 2009-10-19 | 501-475-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | SPRINGLAKE | AR |
| 2009-10-19 | 501-747-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LITTLEROCK | AR |
| 2009-10-15 | 501-392-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SYVNHLSHWD | AR |
| 2009-10-15 | 501-618-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-10-15 | 501-618-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-10-15 | 501-618-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2009-10-14 | 501-414-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2009-10-06 | 501-414-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | 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.