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 |
|---|---|---|---|---|---|---|---|
| 2005-06-30 | 240-221-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN11 | MD |
| 2005-06-30 | 240-222-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALDORF | MD |
| 2005-06-30 | 240-233-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | TOMPKINSVL | MD |
| 2005-06-30 | 240-246-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | GAITHERSBG | MD |
| 2005-06-30 | 240-249-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MECHANCSVL | MD |
| 2005-06-30 | 240-254-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HUGHESVL | MD |
| 2005-06-30 | 240-264-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2005-06-30 | 240-293-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN12 | MD |
| 2005-06-30 | 240-328-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN10 | MD |
| 2005-06-30 | 240-342-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | ASHTON236 | MD |
| 2005-06-30 | 240-349-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | LA PLATA | MD |
| 2005-06-30 | 240-377-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | INDIANHEAD | MD |
| 2005-06-30 | 240-396-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN2 | MD |
| 2005-06-30 | 240-489-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | POOLESVL | MD |
| 2005-06-30 | 240-625-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HAGERSTOWN | MD |
| 2005-06-29 | 240-207-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | DAMASCS236 | MD |
| 2005-06-28 | 240-482-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-06-28 | 240-482-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-06-23 | 240-356-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | MYERSVILLE | MD |
| 2005-06-23 | 240-533-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-06-20 | 240-523-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LA PLATA | MD |
| 2005-06-20 | 240-547-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LAUREL236 | MD |
| 2005-06-20 | 240-547-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LAUREL236 | MD |
| 2005-06-20 | 240-547-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LAUREL236 | MD |
| 2005-06-20 | 240-547-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LAUREL236 | MD |
| 2005-06-10 | 240-533-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-06-08 | 240-487-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | WSHNGTNZN4 | MD |
| 2005-06-07 | 240-328-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2005-06-06 | 240-491-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-06-02 | 240-246-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | GAITHERSBG | MD |
| 2005-06-02 | 240-313-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2005-06-02 | 240-315-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-06-02 | 240-744-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2005-06-02 | 240-863-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN3 | MD |
| 2005-06-01 | 240-821-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WSHNGTNZN3 | MD |
| 2005-05-25 | 240-291-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2005-05-24 | 240-863-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN3 | MD |
| 2005-05-23 | 240-477-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | GAITHERSBG | MD |
| 2005-05-17 | 240-529-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2005-05-17 | 240-529-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2005-05-12 | 240-979-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | CUMBERLAND | MD |
| 2005-05-10 | 240-750-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-05-10 | 240-750-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2005-05-05 | 240-215-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-05-05 | 240-215-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2005-05-05 | 240-222-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2005-05-04 | 240-499-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | MD |
| 2005-05-04 | 240-499-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | MD |
| 2005-05-04 | 240-499-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | MD |
| 2005-05-04 | 240-599-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | 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.