NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 904
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 215
POWERTEL JACKSONVILLE LICENSES, INC. 88
NEW CINGULAR WIRELESS PCS, LLC - GA 72
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 53
ONVOY, LLC - FL 51
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2015-03-12 904-990 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2015-01-28 904-580 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2014-12-08 904-660 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2014-11-19 904-609 0–9 XXXwhole prefix which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2014-11-04 904-601 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C FERNADNBCH FL
2014-10-13 904-575 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2014-10-03 904-606 0–9 XXXall 10 · 4 holders which blocks → COMCAST IP PHONE, LLC 318J MIDDLEBURG FL
2014-09-23 904-574 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2014-08-29 904-480 0–9 XXXwhole prefix which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2014-06-11 904-570 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2014-04-18 904-518 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2014-02-26 904-479 0–9 XXXall 10 · 2 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J JACKSONVL FL
2014-02-17 904-877 0–9 XXXall 10 · 5 holders which blocks → TERRA NOVA TELECOM INC. 145J KINGSLEYLK FL
2014-02-13 904-844 0–9 XXXall 10 · 4 holders which blocks → TERRA NOVA TELECOM, INC. - FL 382G FERNADNBCH FL
2014-01-23 904-702 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2013-12-26 904-530 0–9 XXXall 10 · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 YULEE FL
2013-11-21 904-258 0–9 XXXall 10 · 2 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2013-11-07 904-440 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2013-08-19 904-512 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E JACKSONVL FL
2013-07-18 904-510 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2013-05-24 904-930 0–9 XXXall 10 · 2 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2013-02-04 904-602 0–9 XXXall 10 · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2012-11-12 904-516 0–9 XXXall 10 · 7 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2012-10-26 904-515 0–9 XXXall 10 · 5 holders which blocks → NUSO, LLC 551G JACKSONVL FL
2012-07-02 904-528 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 JACKSONVL FL
2012-04-02 904-503 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J JACKSONVL FL
2012-02-09 904-323 0–9 XXXall 10 · 2 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-02-09 904-337 0–9 XXXall 10 · 6 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-02-01 904-330 0–9 XXXall 10 · 4 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-02-01 904-423 0–9 XXXall 10 · 5 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2012-01-13 904-802 0–9 XXXall 10 · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C JACKSONVL FL
2012-01-13 904-888 0–9 XXXall 10 · 3 holders which blocks → TERRA NOVA TELECOM, INC. - FL 382G JACKSONVL FL
2011-11-15 904-267 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM FLORIDA, INC. 0336 HILLIARD FL
2011-11-15 904-320 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM FLORIDA, INC. 0336 CALLAHAN FL
2011-09-27 904-250 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSONVL FL
2011-09-02 904-203 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C MIDDLEBURG FL
2011-02-16 904-900 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2011-01-06 904-300 0–9 XXXall 10 · 3 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2010-10-21 904-341 0–9 XXXall 10 · 4 holders which blocks → WINDSTREAM FLORIDA, INC. 0336 CALLAHAN FL
2010-10-21 904-800 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JACKSONVL FL
2010-10-08 904-600 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E MIDDLEBURG FL
2010-10-08 904-701 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E JACKSONVL FL
2010-09-01 904-336 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 ORANGEPARK FL
2010-08-19 904-586 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C JACKSONVL FL
2010-08-16 904-416 0–9 XXXall 10 · 3 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2010-08-16 904-508 0–9 XXXall 10 · 2 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2010-08-03 904-428 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSONVL FL
2010-04-15 904-546 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2010-02-15 904-404 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2010-02-12 904-414 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 JACKSONVL FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.