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 743
ONVOY, LLC - NC 35
TON80 COMMUNICATIONS, LLC 21
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 13
FRACTEL, LLC 11
BANDWIDTH.COM CLEC, LLC - NC 10
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
2018-08-30 743-800 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E ROARINGGAP NC
2017-09-05 743-333 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E WINSTN SAL NC
2017-06-15 743-867 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H GREENSBORO NC
2017-02-27 743-777 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H SUMMERFLD NC
2017-02-24 743-444 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H WINSTN SAL NC
2017-01-17 743-223 0–9 XXXall 10 · 5 holders which blocks → NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC 361F GREENSBORO NC
2016-04-14 743-888 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F KIMESVILLE NC
2016-04-06 743-999 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F WINSTN SAL NC
— 743-204 not yet reported which blocks → NC
— 743-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-217 0–9 XXXall 10 · 2 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J LEXINGTON NC
— 743-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST NC
— 743-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-700 not yet reported which blocks → NC
— 743-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 743-950 not yet reported which blocks → NC
— 743-958 not yet reported which blocks → NC
— 743-959 not yet reported which blocks → NC
— 743-976 not yet reported which blocks → NC

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.