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
2010-07-06 561-740-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-07-06 561-926-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-07-01 561-463-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2010-07-01 561-463-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2010-07-01 561-826-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-07-01 561-826-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-06-21 561-666-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 DELRAY BCH FL
2010-06-21 561-972-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J JUPITER FL
2010-06-10 561-672-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2010-06-10 561-894-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DELRAY BCH FL
2010-06-07 561-355-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2010-06-07 561-509-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2010-06-07 561-768-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J JUPITER FL
2010-06-07 561-791-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2010-06-03 561-287-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-06-03 561-287-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-06-03 561-291-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-291-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-318-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2010-06-03 561-379-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-463-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2010-06-03 561-629-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-629-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-672-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-06-03 561-767-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-06-03 561-819-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-06-03 561-819-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-06-03 561-880-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-06-03 561-899-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-899-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-899-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-06-03 561-899-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-05-27 561-291-1XXX 1000–1999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-27 561-291-2XXX 2000–2999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-27 561-291-3XXX 3000–3999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-27 561-291-4XXX 4000–4999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-27 561-291-5XXX 5000–5999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-27 561-351-2XXX 2000–2999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-05-20 561-899-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2010-05-20 561-922-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BOCA RATON FL
2010-05-12 561-880-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 BOYNTONBCH FL
2010-05-03 561-739-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-05-03 561-926-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-04-26 561-287-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-04-26 561-536-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-04-22 561-249-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2010-04-22 561-367-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2010-04-22 561-899-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2010-04-19 561-768-6XXX 6000–6999Assigned METROPCS, INC. 5562 JUPITER FL
2010-04-19 561-768-8XXX 8000–8999Assigned METROPCS, INC. 5562 JUPITER 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.