NumberResearchRecent thousands-block assignments
41 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 571
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 |
|---|---|---|---|---|---|---|---|
| 2022-09-02 | 571-751-4XXX | 4000–4999 | Assigned | ONVOY, LLC - VA | 138E | ARCOLA | VA |
| 2022-09-02 | 571-751-5XXX | 5000–5999 | Assigned | ONVOY, LLC - VA | 138E | ARCOLA | VA |
| 2022-09-02 | 571-751-6XXX | 6000–6999 | Assigned | ONVOY, LLC - VA | 138E | ARCOLA | VA |
| 2022-09-02 | 571-751-7XXX | 7000–7999 | Assigned | ONVOY, LLC - VA | 138E | ARCOLA | VA |
| 2022-08-30 | 571-569-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | MANASSAS | VA |
| 2022-08-16 | 571-569-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-16 | 571-569-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-16 | 571-569-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-16 | 571-569-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-16 | 571-569-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | MANASSAS | VA |
| 2022-08-12 | 571-563-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-12 | 571-563-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-12 | 571-563-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-12 | 571-563-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-12 | 571-563-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-548-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-548-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-548-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-548-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-548-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERNDON | VA |
| 2022-08-10 | 571-578-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - VA | 4644 | LEESBURG | VA |
| 2022-08-10 | 571-578-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - VA | 4644 | LEESBURG | VA |
| 2022-08-09 | 571-832-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BRADDOCK | VA |
| 2022-08-09 | 571-832-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BRADDOCK | VA |
| 2022-08-09 | 571-832-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BRADDOCK | VA |
| 2022-08-09 | 571-832-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BRADDOCK | VA |
| 2022-08-09 | 571-832-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BRADDOCK | VA |
| 2022-08-01 | 571-560-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WSNGTNZN08 | VA |
| 2022-07-22 | 571-560-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-22 | 571-560-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-22 | 571-560-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-22 | 571-560-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-22 | 571-560-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-22 | 571-562-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-07-22 | 571-562-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-07-22 | 571-562-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-07-22 | 571-562-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-07-22 | 571-562-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-07-21 | 571-547-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-21 | 571-547-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN08 | VA |
| 2022-07-21 | 571-578-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEESBURG | VA |
| 2022-07-21 | 571-578-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEESBURG | VA |
| 2022-06-29 | 571-538-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | MANASSAS | VA |
| 2022-06-29 | 571-746-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | DULLES | VA |
| 2022-06-17 | 571-349-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ARCOLA | VA |
| 2022-05-31 | 571-591-6XXX | 6000–6999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2022-05-27 | 571-746-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | DULLES | VA |
| 2022-05-24 | 571-531-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-05-24 | 571-545-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2022-05-24 | 571-574-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | 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.