NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 904
ONVOY, LLC - FL 6
BANDWIDTH.COM CLEC, LLC - FL 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 2
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
2013-03-05 904-528-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 JACKSONVL FL
2013-03-05 904-528-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 JACKSONVL FL
2013-03-04 904-503-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2013-03-01 904-337-7XXX 7000–7999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2013-02-06 904-320-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 CALLAHAN FL
2013-02-05 904-602-0XXX 0000–0999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2013-02-05 904-602-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2013-02-05 904-602-2XXX 2000–2999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2013-02-05 904-602-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2013-02-05 904-602-4XXX 4000–4999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2013-02-04 904-423-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J JACKSONVL FL
2013-01-29 904-330-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2013-01-29 904-337-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2013-01-28 904-679-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ST JOHNS FL
2013-01-14 904-564-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2013-01-11 904-615-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOHNS FL
2013-01-07 904-330-9XXX 9000–9999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-12-13 904-423-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JACKSONVL FL
2012-11-26 904-729-2XXX 2000–2999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 FERNADNBCH FL
2012-11-26 904-729-3XXX 3000–3999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 FERNADNBCH FL
2012-11-26 904-729-6XXX 6000–6999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 FERNADNBCH FL
2012-11-16 904-694-6XXX 6000–6999Assigned ONVOY, LLC - FL 937C JACKSOLBCH FL
2012-11-16 904-694-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C JACKSOLBCH FL
2012-11-16 904-694-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JACKSOLBCH FL
2012-11-16 904-758-7XXX 7000–7999Assigned ONVOY, LLC - FL 937C JACKSOLBCH FL
2012-11-15 904-503-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 JACKSONVL FL
2012-11-13 904-516-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2012-11-09 904-342-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ST JOHNS FL
2012-11-06 904-330-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2012-11-06 904-330-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2012-10-29 904-515-1XXX 1000–1999Assigned NUSO, LLC 551G JACKSONVL FL
2012-10-16 904-385-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ORANGEPARK FL
2012-10-15 904-600-9XXX 9000–9999Assigned METROPCS, INC. 5562 MIDDLEBURG FL
2012-10-10 904-397-8XXX 8000–8999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 MACCLENNY FL
2012-09-28 904-274-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E MAXVILLE FL
2012-09-14 904-423-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J JACKSONVL FL
2012-09-07 904-474-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E BALDWIN FL
2012-09-07 904-800-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-09-07 904-800-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-09-07 904-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-09-07 904-800-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-09-07 904-800-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-09-07 904-800-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2012-08-23 904-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FERNADNBCH FL
2012-08-21 904-330-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-08-21 904-337-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-08-21 904-337-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-08-21 904-423-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-08-21 904-423-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-08-21 904-503-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J JACKSONVL 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.