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 |
|---|---|---|---|---|---|---|---|
| 2015-12-03 | 571-474-1XXX | 1000–1999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2015-12-03 | 571-474-2XXX | 2000–2999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2015-12-03 | 571-474-3XXX | 3000–3999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2015-12-03 | 571-510-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | LEESBURG | VA |
| 2015-11-25 | 571-444-0XXX | 0000–0999 | Assigned | ATLANTECH ONLINE OF VIRGINIA, L.L.C. | 514G | WSNGTNZN08 | VA |
| 2015-11-25 | 571-474-0XXX | 0000–0999 | Assigned | ATLANTECH ONLINE OF VIRGINIA, L.L.C. | 514G | WSNGTNZN19 | VA |
| 2015-11-20 | 571-200-0XXX | 0000–0999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-1XXX | 1000–1999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-2XXX | 2000–2999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-3XXX | 3000–3999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-4XXX | 4000–4999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-5XXX | 5000–5999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-6XXX | 6000–6999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-7XXX | 7000–7999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-8XXX | 8000–8999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-20 | 571-200-9XXX | 9000–9999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2015-11-18 | 571-552-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DALE CITY | VA |
| 2015-11-18 | 571-552-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | DALE CITY | VA |
| 2015-11-17 | 571-341-7XXX | 7000–7999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2015-11-17 | 571-341-9XXX | 9000–9999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2015-11-17 | 571-489-4XXX | 4000–4999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2015-11-17 | 571-489-5XXX | 5000–5999 | Assigned | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2015-11-13 | 571-465-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | LEESBURG | VA |
| 2015-11-13 | 571-469-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | HAYMARKET | VA |
| 2015-11-12 | 571-474-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN19 | VA |
| 2015-11-12 | 571-565-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2015-11-12 | 571-565-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2015-11-11 | 571-351-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN08 | VA |
| 2015-11-09 | 571-589-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | DALE CITY | VA |
| 2015-10-29 | 571-376-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HERNDON | VA |
| 2015-10-22 | 571-322-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ENGLESIDE | VA |
| 2015-10-22 | 571-365-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | BRADDOCK | VA |
| 2015-10-19 | 571-707-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | LEESBURG | VA |
| 2015-10-15 | 571-719-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | MANASSAS | VA |
| 2015-10-14 | 571-341-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | WSNGTNZN17 | VA |
| 2015-10-14 | 571-342-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HERNDON | VA |
| 2015-10-01 | 571-719-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MANASSAS | VA |
| 2015-09-24 | 571-525-1XXX | 1000–1999 | Assigned | AIRUS, INC. - VA | 726H | HERNDON | VA |
| 2015-09-23 | 571-645-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 7529 | WSNGTNZN08 | VA |
| 2015-09-22 | 571-565-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN17 | VA |
| 2015-09-18 | 571-341-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | WSNGTNZN17 | VA |
| 2015-09-18 | 571-363-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | WSNGTNZN19 | VA |
| 2015-09-18 | 571-777-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | WSNGTNZN08 | VA |
| 2015-09-17 | 571-472-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA |
| 2015-09-17 | 571-472-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 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.