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
2019-12-23 904-944 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2019-10-24 904-544 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2019-09-18 904-539 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2019-08-20 904-532 0–9 XXXwhole prefix which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 JACKSONVL FL
2019-08-05 904-526 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 MIDDLEBURG FL
2019-07-29 904-780 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C FERNADNBCH FL
2019-06-12 904-523 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2019-05-30 904-906 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C BALDWIN FL
2019-05-01 904-506 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ST JOHNS FL
2019-04-26 904-496 0–9 XXXall 10 · 2 holders which blocks → VONAGE AMERICA LLC 197D JACKSONVL FL
2019-02-20 904-490 0–9 XXXall 10 · 6 holders which blocks → EXIANT COMMUNICATIONS LLC 114J JACKSONVL FL
2019-02-18 904-488 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2018-11-30 904-481 0–9 XXXall 10 · 4 holders which blocks → VONAGE AMERICA LLC 197D ST JOHNS FL
2018-11-08 904-478 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C PNTVDRABCH FL
2018-08-28 904-467 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E BALDWIN FL
2018-07-19 904-914 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2018-05-09 904-587 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C ST JOHNS FL
2018-03-30 904-455 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2017-12-26 904-454 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 STARKE FL
2017-12-07 904-453 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2017-12-05 904-439 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOHNS FL
2017-08-03 904-431 0–9 XXXall 10 · 6 holders which blocks → VONAGE AMERICA LLC 197D JACKSONVL FL
2017-05-10 904-362 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2017-04-05 904-441 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FERNADNBCH FL
2017-04-04 904-326 0–9 XXXall 10 · 7 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 FERNADNBCH FL
2017-03-28 904-932 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 ORANGEPARK FL
2017-03-21 904-878 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H JACKSONVL FL
2016-12-20 904-947 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSONVL FL
2016-11-28 904-862 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 JACKSONVL FL
2016-11-14 904-907 0–9 XXXall 10 · 6 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 ST JOHNS FL
2016-10-07 904-872 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 MIDDLEBURG FL
2016-09-20 904-832 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2016-09-14 904-667 0–9 XXXall 10 · 6 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2016-09-14 904-831 0–9 XXXall 10 · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 JACKSONVL FL
2016-08-10 904-747 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E MAXVILLE FL
2016-07-26 904-785 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → WINDSTREAM FLORIDA, INC. 0336 HASTINGS FL
2016-07-26 904-901 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E GREENCVSPG FL
2016-06-29 904-763 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2016-02-25 904-719 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2016-02-24 904-760 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 JACKSONVL FL
2016-02-02 904-299 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C BALDWIN FL
2016-02-01 904-295 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C ST JOHNS FL
2016-01-25 904-293 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOHNS FL
2016-01-20 904-661 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2015-11-24 904-804 0–9 XXXwhole prefix which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 JACKSONVL FL
2015-11-18 904-204 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2015-09-09 904-775 0–9 XXXall 10 · 7 holders which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 FERNADNBCH FL
2015-06-12 904-903 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 JACKSONVL FL
2015-04-30 904-559 0–9 XXXall 10 · 7 holders which blocks → COMCAST IP PHONE, LLC 318J JACKSONVL FL
2015-03-26 904-717 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E 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.