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 |
|---|---|---|---|---|---|---|---|
| 2007-11-21 | 240-468-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2007-11-21 | 240-468-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2007-11-21 | 240-468-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2007-11-21 | 240-468-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2007-11-20 | 240-720-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | GAITHERSBG | MD |
| 2007-11-19 | 240-388-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2007-11-19 | 240-486-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNG236Z14 | MD |
| 2007-11-14 | 240-345-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | ASHTON238 | MD |
| 2007-11-09 | 240-512-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | WSNG238Z13 | MD |
| 2007-11-09 | 240-865-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | WSNG238Z14 | MD |
| 2007-11-06 | 240-586-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2007-11-06 | 240-586-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2007-11-05 | 240-486-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNG236Z14 | MD |
| 2007-10-30 | 240-419-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2007-10-29 | 240-510-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNG236Z15 | MD |
| 2007-10-24 | 240-565-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL238 | MD |
| 2007-10-19 | 240-391-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNG236Z13 | MD |
| 2007-10-17 | 240-839-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2007-10-16 | 240-765-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2007-10-16 | 240-898-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2007-10-16 | 240-898-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2007-10-10 | 240-442-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | OAKLAND | MD |
| 2007-10-09 | 240-755-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL238 | MD |
| 2007-10-05 | 240-364-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2007-10-04 | 240-206-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNG236Z14 | MD |
| 2007-09-24 | 240-317-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LXTNPKGRML | MD |
| 2007-09-24 | 240-342-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | ASHTON236 | MD |
| 2007-09-24 | 240-349-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LA PLATA | MD |
| 2007-09-24 | 240-433-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNGTNZN12 | MD |
| 2007-09-24 | 240-466-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | MECHANCSVL | MD |
| 2007-09-24 | 240-528-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | HUGHESVL | MD |
| 2007-09-24 | 240-545-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z15 | MD |
| 2007-09-24 | 240-685-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | BRANDYWINE | MD |
| 2007-09-24 | 240-812-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | POOLESVL | MD |
| 2007-09-24 | 240-986-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | NANJEMOY | MD |
| 2007-09-21 | 240-357-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2007-09-20 | 240-619-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN5 | MD |
| 2007-09-20 | 240-619-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN5 | MD |
| 2007-09-18 | 240-380-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2007-09-14 | 240-391-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z13 | MD |
| 2007-09-13 | 240-522-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CUMBERLAND | MD |
| 2007-09-13 | 240-543-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2007-09-13 | 240-743-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2007-09-10 | 240-280-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2007-09-10 | 240-294-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2007-09-10 | 240-294-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2007-09-10 | 240-493-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN6 | MD |
| 2007-09-10 | 240-743-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN2 | MD |
| 2007-09-10 | 240-776-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | LA PLATA | MD |
| 2007-09-07 | 240-522-2XXX | 2000–2999 | Assigned | USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD | 4720 | CUMBERLAND | 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.