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 945
FRACTEL, LLC 20
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
2022-02-01 945-667 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H ROCKWALL TX
2022-02-01 945-732 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H FRISCO TX
2022-01-27 945-786 0XXX1XXX2XXX3XXX4XXX7XXX · 4 holders which blocks → FRACTEL, LLC 965H ENNIS TX
2022-01-27 945-842 5XXX which blocks → FRACTEL, LLC 965H DLFTWTARPT TX
2022-01-27 945-946 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H TERRELL TX
2021-05-07 945-699 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MCKINNEY TX
2021-05-07 945-788 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H WILMER TX
2021-05-07 945-899 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H GRANDPRARI TX
2021-03-02 945-386 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H FORNEY TX
2021-03-02 945-758 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H ALLEN TX
2021-03-02 945-766 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H TERRELL TX
2021-01-11 945-200 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H ENNIS TX
2021-01-11 945-234 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H MCKINNEY TX
2021-01-11 945-345 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MIDLOTHIAN TX
2020-11-27 945-336 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H GRANDPRARI TX
2020-11-27 945-348 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H FRISCO TX
2020-11-27 945-356 0XXX1XXX2XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H DLFTWTARPT TX
2020-11-27 945-465 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H COMBINE TX
2020-11-27 945-529 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H VENUS TX
2020-11-27 945-600 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H CELINA TX

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.