NumberResearchRecent thousands-block assignments
5 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 240
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 |
|---|---|---|---|---|---|---|---|
| 2005-05-04 | 240-620-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | MD |
| 2005-05-04 | 240-818-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | MYERSVILLE | MD |
| 2005-05-04 | 240-863-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN3 | MD |
| 2005-05-03 | 240-329-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2005-05-03 | 240-329-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2005-04-27 | 240-427-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALDORF | MD |
| 2005-04-27 | 240-427-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALDORF | MD |
| 2005-04-27 | 240-607-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALDORF | MD |
| 2005-04-27 | 240-607-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALDORF | MD |
| 2005-04-27 | 240-607-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALDORF | MD |
| 2005-04-14 | 240-395-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-04-13 | 240-813-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-04-06 | 240-315-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-04-06 | 240-638-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN3 | MD |
| 2005-04-06 | 240-682-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2005-04-06 | 240-723-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN3 | MD |
| 2005-04-06 | 240-723-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN3 | MD |
| 2005-03-31 | 240-671-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-03-31 | 240-671-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-03-29 | 240-436-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | BUCKEYSTN | MD |
| 2005-03-28 | 240-367-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | FREDERICK | MD |
| 2005-03-23 | 240-229-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | WALDORF | MD |
| 2005-03-23 | 240-405-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | FREDERICK | MD |
| 2005-03-23 | 240-645-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-03-23 | 240-671-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-03-23 | 240-848-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | GAITHERSBG | MD |
| 2005-03-21 | 240-329-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | HAGERSTOWN | MD |
| 2005-03-21 | 240-329-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | HAGERSTOWN | MD |
| 2005-03-21 | 240-580-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | CUMBERLAND | MD |
| 2005-03-21 | 240-580-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | CUMBERLAND | MD |
| 2005-03-14 | 240-383-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-383-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-383-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-383-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-449-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-03-14 | 240-449-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-03-14 | 240-449-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-03-14 | 240-515-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-14 | 240-515-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN2 | MD |
| 2005-03-08 | 240-398-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN3 | MD |
| 2005-03-08 | 240-450-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN3 | MD |
| 2005-03-08 | 240-696-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN4 | MD |
| 2005-03-08 | 240-696-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN4 | MD |
| 2005-03-08 | 240-696-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN4 | MD |
| 2005-03-08 | 240-724-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN6 | MD |
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.