NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2005-08-02 | 240-320-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2005-08-02 | 240-405-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-07-24 | 240-328-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2005-07-22 | 240-527-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2005-07-20 | 240-206-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNG236Z14 | MD |
| 2005-07-20 | 240-206-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNG236Z14 | MD |
| 2005-07-20 | 240-254-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HUGHESVL | MD |
| 2005-07-20 | 240-254-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HUGHESVL | MD |
| 2005-07-20 | 240-256-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LEONARDTN | MD |
| 2005-07-20 | 240-349-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PLATA | MD |
| 2005-07-20 | 240-404-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
| 2005-07-20 | 240-404-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
| 2005-07-20 | 240-489-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POOLESVL | MD |
| 2005-07-20 | 240-489-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POOLESVL | MD |
| 2005-07-20 | 240-489-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POOLESVL | MD |
| 2005-07-20 | 240-523-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PLATA | MD |
| 2005-07-20 | 240-523-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PLATA | MD |
| 2005-07-20 | 240-523-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PLATA | MD |
| 2005-07-20 | 240-652-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MECHANCSVL | MD |
| 2005-07-20 | 240-652-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MECHANCSVL | MD |
| 2005-07-20 | 240-652-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MECHANCSVL | MD |
| 2005-07-20 | 240-718-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LXTNPKGRML | MD |
| 2005-07-20 | 240-718-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LXTNPKGRML | MD |
| 2005-07-20 | 240-764-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN4 | MD |
| 2005-07-20 | 240-764-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN4 | MD |
| 2005-07-20 | 240-804-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | TOMPKINSVL | MD |
| 2005-07-20 | 240-804-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | TOMPKINSVL | MD |
| 2005-07-20 | 240-844-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | RIDGE | MD |
| 2005-07-20 | 240-844-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | RIDGE | MD |
| 2005-07-20 | 240-986-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | NANJEMOY | MD |
| 2005-07-20 | 240-986-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | NANJEMOY | MD |
| 2005-07-20 | 240-993-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INDIANHEAD | MD |
| 2005-07-20 | 240-993-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INDIANHEAD | MD |
| 2005-07-20 | 240-993-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INDIANHEAD | MD |
| 2005-07-19 | 240-823-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRANDYWINE | MD |
| 2005-07-19 | 240-823-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRANDYWINE | MD |
| 2005-07-19 | 240-823-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRANDYWINE | MD |
| 2005-07-18 | 240-413-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2005-07-18 | 240-752-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-07-15 | 240-645-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-07-15 | 240-645-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-07-14 | 240-455-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | WSHNGTNZN5 | MD |
| 2005-07-11 | 240-434-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LEONARDTN | MD |
| 2005-07-07 | 240-320-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2005-07-07 | 240-405-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-07-07 | 240-405-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-07-07 | 240-421-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN10 | MD |
| 2005-07-07 | 240-487-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2005-07-05 | 240-427-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WALDORF | MD |
| 2005-06-30 | 240-207-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | DAMASCS236 | MD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.