NumberResearchRecent thousands-block assignments
43 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 |
|---|---|---|---|---|---|---|---|
| 2003-03-18 | 571-641-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-03-13 | 571-594-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-03-13 | 571-594-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-02-14 | 571-723-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-02-14 | 571-723-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-02-14 | 571-723-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-02-06 | 571-224-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN19 | VA |
| 2003-02-06 | 571-283-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | HERNDON | VA |
| 2003-02-06 | 571-594-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN17 | VA |
| 2003-01-31 | 571-283-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HERNDON | VA |
| 2003-01-31 | 571-283-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HERNDON | VA |
| 2003-01-31 | 571-283-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HERNDON | VA |
| 2003-01-31 | 571-283-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HERNDON | VA |
| 2003-01-29 | 571-723-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-01-29 | 571-723-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-01-29 | 571-723-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-01-29 | 571-723-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN19 | VA |
| 2003-01-17 | 571-594-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-01-17 | 571-594-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-01-14 | 571-344-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2003-01-14 | 571-344-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2003-01-14 | 571-344-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2003-01-14 | 571-344-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2003-01-14 | 571-344-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2003-01-03 | 571-594-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2003-01-03 | 571-723-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | WSNGTNZN19 | VA |
| 2002-12-20 | 571-218-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-12-20 | 571-218-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-12-20 | 571-218-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-12-20 | 571-218-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-12-20 | 571-218-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-12-20 | 571-594-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2002-12-20 | 571-594-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2002-12-18 | 571-246-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEESBURG | VA |
| 2002-12-18 | 571-921-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | MANASSAS | VA |
| 2002-12-12 | 571-247-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MANASSAS | VA |
| 2002-12-02 | 571-261-3XXX | 3000–3999 | Assigned | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | HAYMARKET | VA |
| 2002-11-26 | 571-283-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HERNDON | VA |
| 2002-11-07 | 571-218-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-11-07 | 571-218-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2002-10-23 | 571-261-2XXX | 2000–2999 | Assigned | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | HAYMARKET | VA |
| 2002-06-17 | 571-721-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-17 | 571-721-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-17 | 571-721-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-17 | 571-721-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-17 | 571-721-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-17 | 571-721-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | WSNGTNZN08 | VA |
| 2002-06-05 | 571-261-1XXX | 1000–1999 | Assigned | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | HAYMARKET | 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.