NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 813
FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 233
AERIAL COMMUNICATIONS, INC. 96
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 73
METROPCS, INC. 53
NEW CINGULAR WIRELESS PCS, LLC - GA 47
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
2014-12-12 813-773 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C TAMPASTH FL
2014-12-10 813-585 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-11-26 813-575 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPANTH FL
2014-11-26 813-607 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPANTH FL
2014-11-10 813-580 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2014-10-06 813-573 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-09-25 813-551 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPAWST FL
2014-07-02 813-327 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J TAMPACEN FL
2014-06-19 813-452 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2014-06-05 813-577 0–9 XXXall 10 · 4 holders which blocks → WIDE VOICE, LLC - FL 704G TAMPACEN FL
2014-06-05 813-815 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2014-06-05 813-816 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPASTH FL
2014-06-02 813-605 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C TAMPACEN FL
2014-04-17 813-570 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-04-10 813-563 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2014-04-04 813-540 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPAEST FL
2014-03-31 813-603 0–9 XXXall 10 · 4 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TAMPAEST FL
2014-03-28 813-530 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J TAMPAEST FL
2014-03-03 813-609 0–9 XXXall 10 · 4 holders which blocks → BARR TELL USA, INC. - FL 305H TAMPACEN FL
2014-02-26 813-203 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2013-12-09 813-616 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2013-11-20 813-284 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J TAMPACEN FL
2013-10-01 813-606 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2013-10-01 813-812 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPASTH FL
2013-08-14 813-518 0–9 XXXall 10 · 6 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2013-07-03 813-693 0–9 XXXall 10 · 4 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TAMPANTH FL
2013-06-12 813-456 0–9 XXXwhole prefix which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 TAMPACEN FL
2013-06-07 813-804 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J TAMPACEN FL
2013-06-06 813-808 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2013-04-30 813-517 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2013-04-02 813-510 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPAWST FL
2013-02-15 813-803 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPANTH FL
2013-01-31 813-512 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2013-01-10 813-509 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2013-01-10 813-702 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 ZEPHYRHILS FL
2012-12-04 813-331 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPASTH FL
2012-12-03 813-502 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPAEST FL
2012-08-23 813-424 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2012-06-06 813-330 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPAEST FL
2012-03-16 813-360 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2012-02-16 813-430 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C TAMPAWST FL
2012-02-09 813-922 0–9 XXXall 10 · 5 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L TAMPASTH FL
2012-01-17 813-867 0–9 XXXall 10 · 6 holders which blocks → TERRA NOVA TELECOM, INC. - FL 382G TAMPACEN FL
2012-01-03 813-337 0–9 XXXall 10 · 7 holders which blocks → NUSO, LLC 551G TAMPACEN FL
2011-12-28 813-320 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPASTH FL
2011-11-11 813-308 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPAEST FL
2011-11-08 813-304 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2011-10-26 813-252 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TAMPACEN FL
2011-09-23 813-302 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPACEN FL
2011-09-14 813-324 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 TAMPAEST FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.