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
2020-09-10 813-686 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TAMPASTH FL
2020-09-10 813-706 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2020-09-04 813-698 0–9 XXXall 10 · 2 holders which blocks → IP HORIZON LLC 515J TAMPACEN FL
2020-08-28 813-647 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2020-08-28 813-648 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAEST FL
2020-08-25 813-596 0–9 XXXall 10 · 2 holders which blocks → VONAGE AMERICA LLC 197D TAMPANTH FL
2020-08-21 813-595 0–9 XXXall 10 · 2 holders which blocks → VONAGE AMERICA LLC 197D TAMPAEST FL
2020-08-19 813-593 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 TAMPACEN FL
2020-07-16 813-669 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H TAMPAEST FL
2020-06-19 813-212 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 478J TAMPACEN FL
2020-04-29 813-592 0–9 XXXall 10 · 3 holders which blocks → CSC WIRELESS, LLC 425J TAMPAWST FL
2020-04-28 813-680 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2020-03-26 813-590 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPASTH FL
2020-01-08 813-219 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 TAMPAWST FL
2019-10-22 813-587 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2019-10-08 813-710 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H TAMPACEN FL
2019-08-28 813-582 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2019-07-16 813-581 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2019-07-12 813-578 0–9 XXXall 10 · 5 holders which blocks → AT&T - LOCAL 7421 PLANT CITY FL
2019-06-28 813-576 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPANTH FL
2019-06-20 813-568 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F TAMPACEN FL
2019-06-04 813-678 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H TAMPACEN FL
2019-05-20 813-755 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H TAMPANTH FL
2019-05-20 813-822 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H TAMPAEST FL
2019-05-17 813-565 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C TAMPAEST FL
2019-05-17 813-819 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TAMPASTH FL
2019-05-15 813-564 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2019-05-09 813-640 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E ZEPHYRHILS FL
2019-05-02 813-560 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2019-02-28 813-556 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TAMPACEN FL
2019-02-20 813-946 0–9 XXXall 10 · 5 holders which blocks → CORETEL FLORIDA, INC. - FL 481F PLANT CITY FL
2019-01-11 813-524 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C TAMPACEN FL
2018-12-13 813-553 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 TAMPANTH FL
2018-11-07 813-683 0–9 XXXall 10 · 5 holders which blocks → HD CARRIER LLC 321J TAMPACEN FL
2018-10-30 813-566 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H TAMPASTH FL
2018-10-26 813-665 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H ZEPHYRHILS FL
2018-10-26 813-688 0–9 XXXall 10 · 3 holders which blocks → INVOXIO INCORPORATED 158H TAMPAEST FL
2018-10-25 813-722 0–9 XXXall 10 · 3 holders which blocks → INVOXIO INCORPORATED 158H TAMPAWST FL
2018-10-25 813-733 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H TAMPANTH FL
2018-10-11 813-550 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2018-10-11 813-599 0–9 XXXall 10 · 2 holders which blocks → INVOXIO INCORPORATED 158H TAMPACEN FL
2018-10-08 813-521 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2018-10-08 813-537 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPAWST FL
2018-09-27 813-535 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E TAMPASTH FL
2018-09-20 813-522 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 TAMPANTH FL
2018-09-07 813-519 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C TAMPACEN FL
2018-06-25 813-497 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 TAMPACEN FL
2018-06-08 813-467 0–9 XXXall 10 · 5 holders which blocks → ADVANCED TELECOM SOLUTIONS, LLC 181J TAMPACEN FL
2018-04-17 813-485 0–9 XXXall 10 · 3 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L TAMPACEN FL
2018-02-20 813-652 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C PLANT CITY 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.