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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-02-11 561-955-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2011-02-11 561-961-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2011-02-11 561-962-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2011-02-11 561-997-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOCA RATON FL
2011-02-09 561-600-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2011-02-09 561-600-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 BOYNTONBCH FL
2011-02-09 561-800-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C WPALMBEACH FL
2011-02-04 561-285-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PAHOKEE FL
2011-01-27 561-672-4XXX 4000–4999Assigned METROPCS, INC. 5562 BOCA RATON FL
2011-01-27 561-939-9XXX 9000–9999Assigned METROPCS, INC. 5562 BOCA RATON FL
2011-01-26 561-330-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DELRAY BCH FL
2011-01-26 561-463-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BELLEGLADE FL
2011-01-25 561-285-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PAHOKEE FL
2011-01-12 561-800-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-12 561-800-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-12 561-800-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-12 561-800-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-12 561-800-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-11 561-444-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2011-01-11 561-444-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2011-01-11 561-444-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2011-01-11 561-450-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C DELRAY BCH FL
2011-01-06 561-227-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-06 561-515-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-06 561-629-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-06 561-671-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2011-01-06 561-805-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2010-12-29 561-802-8XXX 8000–8999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-12-29 561-838-3XXX 3000–3999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-12-29 561-904-1XXX 1000–1999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-12-28 561-600-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-12-28 561-600-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-12-22 561-227-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2010-12-22 561-463-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2010-12-16 561-463-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEGLADE FL
2010-12-16 561-672-5XXX 5000–5999Assigned METROPCS, INC. 5562 BOCA RATON FL
2010-12-07 561-509-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2010-12-07 561-509-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2010-12-06 561-293-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2010-12-06 561-293-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 WPALMBEACH FL
2010-11-30 561-288-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-11-30 561-288-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-11-29 561-288-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 BOCA RATON FL
2010-11-23 561-288-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-11-23 561-288-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-11-23 561-921-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-11-22 561-288-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-11-22 561-288-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-11-22 561-288-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-11-19 561-293-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 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.