NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

3 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, last 30 days — NPA 727
ONVOY, LLC - FL 2
TELIMIZE, LLC 1
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
2022-08-09 727-603 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2022-06-10 727-591 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C TARPON SPG FL
2022-06-10 727-594 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C STPETERSBG FL
2022-06-09 727-590 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 STPETERSBG FL
2022-03-24 727-589 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2022-02-15 727-355 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 NWPTRICHEY FL
2022-02-14 727-554 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2022-02-14 727-558 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2022-01-20 727-354 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
2022-01-07 727-506 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-12-22 727-496 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 CLEARWATER FL
2021-12-03 727-486 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-11-16 727-454 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2021-10-12 727-436 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H HUDSON FL
2021-10-11 727-435 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 STPETERSBG FL
2021-10-08 727-746 0–9 XXXall 10 · 7 holders which blocks → CORETEL FLORIDA, INC. - FL 481F STPETERSBG FL
2021-09-30 727-426 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-09-28 727-416 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TARPON SPG FL
2021-09-13 727-922 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CLEARWATER FL
2021-08-25 727-404 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-08-19 727-633 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H NWPTRICHEY FL
2021-08-17 727-297 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
2021-08-11 727-396 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2021-07-29 727-284 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 STPETERSBG FL
2021-06-21 727-855 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CLEARWATER FL
2021-05-27 727-283 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-05-04 727-955 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H HUDSON FL
2021-04-07 727-476 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CLEARWATER FL
2021-02-26 727-788 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H NWPTRICHEY FL
2021-02-15 727-739 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H STPETERSBG FL
2021-01-15 727-899 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H CLEARWATER FL
2021-01-15 727-966 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H TARPON SPG FL
2020-12-28 727-910 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - FL 937C NWPTRICHEY FL
2020-12-11 727-699 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H HUDSON FL
2020-11-20 727-390 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STPETERSBG FL
2020-11-17 727-387 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEARWATER FL
2020-10-16 727-380 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E HUDSON FL
2020-10-16 727-382 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - FL 982E TARPON SPG FL
2020-10-16 727-383 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2020-10-08 727-371 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H CLEARWATER FL
2020-08-28 727-358 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2020-08-28 727-370 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2020-08-20 727-349 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C CLEARWATER FL
2020-08-20 727-353 0–9 XXXall 10 · 3 holders which blocks → VONAGE AMERICA LLC 197D STPETERSBG FL
2020-08-13 727-340 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2020-07-16 727-377 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H NWPTRICHEY FL
2020-07-16 727-732 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H CLEARWATER FL
2020-06-09 727-338 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2020-03-11 727-334 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 TARPON SPG FL
2019-12-31 727-332 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEARWATER 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.