NumberResearchRecent thousands-block assignments
1 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 561
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2003-10-20 | 561-245-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 8664 | BOCA RATON | FL |
| 2003-10-17 | 561-721-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-10-17 | 561-876-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-10-17 | 561-951-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-09-22 | 561-504-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | BOCA RATON | FL |
| 2003-09-22 | 561-629-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | WPALMBEACH | FL |
| 2003-09-17 | 561-282-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | WPALMBEACH | FL |
| 2003-09-17 | 561-282-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | WPALMBEACH | FL |
| 2003-08-11 | 561-208-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | BOCA RATON | FL |
| 2003-07-25 | 561-202-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-202-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-233-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-253-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-422-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-491-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-493-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-629-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-25 | 561-784-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2003-07-23 | 561-902-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | PAHOKEE | FL |
| 2003-07-02 | 561-207-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | WPALMBEACH | FL |
| 2003-06-18 | 561-282-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-06-18 | 561-282-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-04-10 | 561-253-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-04-10 | 561-253-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-02-28 | 561-935-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | JUPITER | FL |
| 2003-02-26 | 561-202-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-02-26 | 561-202-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-02-26 | 561-202-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2003-01-23 | 561-404-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | DELRAY BCH | FL |
| 2003-01-22 | 561-902-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | PAHOKEE | FL |
| 2002-12-23 | 561-210-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BOCA RATON | FL |
| 2002-12-05 | 561-548-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-12-05 | 561-548-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | WPALMBEACH | FL |
| 2002-11-22 | 561-208-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF FLORIDA, LP - FL | 7635 | BOCA RATON | FL |
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.