NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
BANDWIDTH.COM CLEC, LLC - FL 1
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2009-08-03 561-200-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2009-08-03 561-200-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2009-08-03 561-200-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2009-07-27 561-578-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2009-07-14 561-249-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-07-14 561-249-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-06-29 561-287-0XXX 0000–0999Assigned METROPCS, INC. 5562 BOCA RATON FL
2009-06-29 561-287-1XXX 1000–1999Assigned METROPCS, INC. 5562 BOCA RATON FL
2009-06-25 561-672-9XXX 9000–9999Assigned METROPCS, INC. 5562 BOCA RATON FL
2009-06-16 561-300-5XXX 5000–5999Assigned ONVOY, LLC - FL 937C BOCA RATON FL
2009-06-03 561-961-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2009-06-01 561-801-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2009-05-15 561-290-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-05-07 561-847-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-05-06 561-263-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-2XXX 2000–2999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-5XXX 5000–5999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-6XXX 6000–6999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-8XXX 8000–8999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-06 561-263-9XXX 9000–9999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JUPITER FL
2009-05-01 561-355-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-05-01 561-366-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-05-01 561-670-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-04-22 561-218-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2009-04-13 561-623-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-04-13 561-629-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-04-13 561-629-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-04-08 561-909-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-03-06 561-839-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-03-02 561-449-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2009-02-26 561-598-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2009-02-19 561-200-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2009-02-19 561-401-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J JUPITER FL
2009-02-19 561-653-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-02-19 561-727-5XXX 5000–5999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2009-02-19 561-727-6XXX 6000–6999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2009-02-19 561-727-7XXX 7000–7999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2009-02-19 561-739-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2009-02-19 561-865-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DELRAY BCH FL
2009-02-19 561-904-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2009-02-13 561-727-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-02-13 561-727-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-02-13 561-729-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-02-06 561-537-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2009-01-29 561-285-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 PAHOKEE FL
2009-01-28 561-290-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL

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.