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
2008-10-21 561-226-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2008-10-21 561-226-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2008-10-16 561-429-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-10-16 561-429-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-10-16 561-429-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-10-16 561-826-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2008-10-16 561-826-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2008-10-13 561-372-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C BOCA RATON FL
2008-10-13 561-739-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C BOYNTONBCH FL
2008-10-13 561-908-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C DELRAY BCH FL
2008-10-13 561-972-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C JUPITER FL
2008-10-07 561-290-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2008-09-30 561-200-8XXX 8000–8999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2008-09-30 561-200-9XXX 9000–9999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2008-09-30 561-292-1XXX 1000–1999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2008-09-30 561-292-2XXX 2000–2999Assigned ONVOY, LLC - FL 937C BOYNTONBCH FL
2008-09-18 561-247-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C WPALMBEACH FL
2008-09-15 561-460-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2008-09-15 561-460-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2008-08-21 561-578-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2008-07-29 561-460-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2008-07-23 561-292-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2008-07-23 561-429-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-07-21 561-594-0XXX 0000–0999Assigned PEERLESS NETWORK OF FLORIDA, LLC - FL 902E WPALMBEACH FL
2008-07-10 561-910-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 BOCA RATON FL
2008-07-08 561-290-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2008-07-08 561-290-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2008-06-26 561-429-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-06-26 561-865-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DELRAY BCH FL
2008-06-18 561-370-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2008-06-12 561-509-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BOYNTONBCH FL
2008-06-02 561-819-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J DELRAY BCH FL
2008-05-08 561-429-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-05-08 561-515-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2008-05-08 561-578-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2008-05-08 561-578-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2008-04-22 561-692-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 BELLEGLADE FL
2008-04-22 561-972-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 JUPITER FL
2008-04-07 561-245-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2008-04-07 561-961-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BOCA RATON FL
2008-03-13 561-961-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2008-03-10 561-771-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 PAHOKEE FL
2008-03-05 561-623-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2008-03-03 561-420-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WPALMBEACH FL
2008-03-03 561-729-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WPALMBEACH FL
2008-02-28 561-900-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DELRAY BCH FL
2008-02-20 561-531-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WPALMBEACH FL
2008-02-15 561-537-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WPALMBEACH FL
2008-02-14 561-245-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BOCA RATON FL
2008-02-07 561-972-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E 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.