NumberResearchRecent thousands-block assignments
10 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 540
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 |
|---|---|---|---|---|---|---|---|
| 2008-12-17 | 540-260-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | CHRISTISBG | VA |
| 2008-12-17 | 540-260-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | CHRISTISBG | VA |
| 2008-12-17 | 540-277-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BERRYVILLE | VA |
| 2008-12-17 | 540-326-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDDLEBURG | VA |
| 2008-12-17 | 540-402-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | REMINGTON | VA |
| 2008-12-17 | 540-526-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | ROANOKE | VA |
| 2008-12-16 | 540-237-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA | 7238 | BRIDGEWTR | VA |
| 2008-12-16 | 540-713-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA | 7238 | ELKTON | VA |
| 2008-12-16 | 540-879-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA | 7238 | DAYTON | VA |
| 2008-12-15 | 540-227-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WASHINGTON | VA |
| 2008-12-15 | 540-308-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ORANGE | VA |
| 2008-12-15 | 540-751-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MT GILEAD | VA |
| 2008-12-15 | 540-868-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STEPHENSCY | VA |
| 2008-12-12 | 540-205-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MINERAL | VA |
| 2008-12-12 | 540-244-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LURAY | VA |
| 2008-12-12 | 540-413-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DAHLGREN | VA |
| 2008-12-12 | 540-532-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WINCHESTER | VA |
| 2008-12-12 | 540-532-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WINCHESTER | VA |
| 2008-12-12 | 540-579-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CATOCTIN | VA |
| 2008-12-12 | 540-709-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KINGGEORGE | VA |
| 2008-12-12 | 540-724-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARSHALL | VA |
| 2008-12-12 | 540-788-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CALVERTON | VA |
| 2008-12-08 | 540-632-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | ROANOKE | VA |
| 2008-12-08 | 540-656-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | FREDECKSBG | VA |
| 2008-12-05 | 540-577-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | RADFORD | VA |
| 2008-12-05 | 540-577-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | RADFORD | VA |
| 2008-12-05 | 540-724-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | MARSHALL | VA |
| 2008-12-03 | 540-235-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PEARISBURG | VA |
| 2008-12-02 | 540-244-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | LURAY | VA |
| 2008-12-02 | 540-435-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HARRISONBG | VA |
| 2008-12-02 | 540-560-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HARRISONBG | VA |
| 2008-12-01 | 540-254-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BUCHANAN | VA |
| 2008-12-01 | 540-268-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHAWSVILLE | VA |
| 2008-12-01 | 540-307-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBLIN | VA |
| 2008-12-01 | 540-358-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NARROWS | VA |
| 2008-12-01 | 540-377-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RAPHINE | VA |
| 2008-12-01 | 540-456-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GREENWOOD | VA |
| 2008-12-01 | 540-997-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CRAIGSVL | VA |
| 2008-11-25 | 540-683-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | WASHINGTON | VA |
| 2008-11-12 | 540-413-1XXX | 1000–1999 | Assigned | IDT AMERICA, CORP. - VA | 231C | DAHLGREN | VA |
| 2008-11-11 | 540-598-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | ROANOKE | VA |
| 2008-11-07 | 540-227-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WASHINGTON | VA |
| 2008-11-07 | 540-316-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WARRENTON | VA |
| 2008-11-07 | 540-324-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | STAUNTON | VA |
| 2008-11-07 | 540-328-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | STONE MT | VA |
| 2008-11-07 | 540-686-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WINCHESTER | VA |
| 2008-11-06 | 540-200-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BLACKSBURG | VA |
| 2008-11-06 | 540-212-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | CULPEPER | VA |
| 2008-11-06 | 540-228-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | NATURALBDG | VA |
| 2008-11-06 | 540-238-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | ROCKYMOUNT | VA |
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.