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 |
|---|---|---|---|---|---|---|---|
| 2007-09-07 | 240-764-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2007-09-07 | 240-764-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2007-09-07 | 240-764-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2007-09-07 | 240-764-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2007-09-05 | 240-577-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LEONARDTN | MD |
| 2007-09-05 | 240-750-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | GAITHERSBG | MD |
| 2007-09-05 | 240-818-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | MYERSVILLE | MD |
| 2007-09-04 | 240-865-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | WSNG238Z14 | MD |
| 2007-08-30 | 240-237-8XXX | 8000–8999 | Assigned | IDT AMERICA, CORP. - MD | 228C | LXTNPKGRML | MD |
| 2007-08-30 | 240-249-6XXX | 6000–6999 | Assigned | IDT AMERICA, CORP. - MD | 228C | MECHANCSVL | MD |
| 2007-08-30 | 240-258-5XXX | 5000–5999 | Assigned | IDT AMERICA, CORP. - MD | 228C | RIDGE | MD |
| 2007-08-30 | 240-743-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2007-08-30 | 240-743-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2007-08-30 | 240-743-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2007-08-30 | 240-750-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | GAITHERSBG | MD |
| 2007-08-30 | 240-750-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | GAITHERSBG | MD |
| 2007-08-30 | 240-750-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | GAITHERSBG | MD |
| 2007-08-29 | 240-627-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNGTNZN11 | MD |
| 2007-08-27 | 240-482-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2007-08-17 | 240-206-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG236Z14 | MD |
| 2007-08-17 | 240-207-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | DAMASCS236 | MD |
| 2007-08-17 | 240-244-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNGTNZN16 | MD |
| 2007-08-17 | 240-412-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WALDORF | MD |
| 2007-08-17 | 240-582-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN4 | MD |
| 2007-08-17 | 240-720-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | GAITHERSBG | MD |
| 2007-08-17 | 240-727-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CUMBERLAND | MD |
| 2007-08-17 | 240-743-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN2 | MD |
| 2007-08-17 | 240-766-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSHNGTNZN6 | MD |
| 2007-08-16 | 240-492-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN5 | MD |
| 2007-08-14 | 240-253-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN6 | MD |
| 2007-08-14 | 240-386-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN10 | MD |
| 2007-08-10 | 240-743-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | WSHNGTNZN2 | MD |
| 2007-08-08 | 240-575-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2007-08-08 | 240-863-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN3 | MD |
| 2007-07-24 | 240-345-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | ASHTON238 | MD |
| 2007-07-24 | 240-522-0XXX | 0000–0999 | Assigned | IDT AMERICA, CORP. - MD | 228C | CUMBERLAND | MD |
| 2007-07-20 | 240-839-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN3 | MD |
| 2007-07-18 | 240-755-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL238 | MD |
| 2007-07-18 | 240-838-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN5 | MD |
| 2007-07-17 | 240-210-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALDORF | MD |
| 2007-07-17 | 240-575-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | FREDERICK | MD |
| 2007-07-17 | 240-575-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | FREDERICK | MD |
| 2007-07-03 | 240-357-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2007-07-03 | 240-577-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LEONARDTN | MD |
| 2007-07-02 | 240-294-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LAUREL236 | MD |
| 2007-07-02 | 240-813-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | GAITHERSBG | MD |
| 2007-06-29 | 240-292-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN11 | MD |
| 2007-06-29 | 240-619-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN5 | MD |
| 2007-06-29 | 240-686-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | GAITHERSBG | MD |
| 2007-06-26 | 240-412-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | WALDORF | 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.