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
2010-04-13 561-287-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2010-04-13 561-862-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2010-04-08 561-899-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-04-05 561-768-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JUPITER FL
2010-04-05 561-899-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2010-04-05 561-899-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-03-24 561-275-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-03-24 561-275-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-03-18 561-509-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-03-18 561-768-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JUPITER FL
2010-03-17 561-284-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-03-08 561-284-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C WPALMBEACH FL
2010-03-01 561-284-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-03-01 561-284-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-03-01 561-284-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-03-01 561-284-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-03-01 561-353-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2010-03-01 561-353-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2010-02-23 561-292-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOYNTONBCH FL
2010-02-22 561-275-0XXX 0000–0999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-02-22 561-275-3XXX 3000–3999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-02-22 561-275-4XXX 4000–4999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-02-22 561-275-6XXX 6000–6999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-02-16 561-500-0XXX 0000–0999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-1XXX 1000–1999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-2XXX 2000–2999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-3XXX 3000–3999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-4XXX 4000–4999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-5XXX 5000–5999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-6XXX 6000–6999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-7XXX 7000–7999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-8XXX 8000–8999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-500-9XXX 9000–9999Assigned PAETEC COMMUNICATIONS, INC. - FL 4227 WPALMBEACH FL
2010-02-16 561-819-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-02-10 561-275-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2010-02-10 561-275-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E WPALMBEACH FL
2010-02-10 561-287-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BOCA RATON FL
2010-02-09 561-284-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-02-09 561-284-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-01-25 561-285-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E PAHOKEE FL
2010-01-25 561-376-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E DELRAY BCH FL
2010-01-25 561-755-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BELLEGLADE FL
2010-01-18 561-450-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DELRAY BCH FL
2010-01-18 561-672-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2010-01-12 561-531-7XXX 7000–7999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-01-12 561-693-7XXX 7000–7999Assigned METROPCS, INC. 5562 WPALMBEACH FL
2010-01-11 561-275-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2010-01-05 561-417-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2009-12-30 561-536-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BOYNTONBCH FL
2009-12-30 561-598-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J 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.