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 620
FRACTEL, LLC 15
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
2021-07-06 620-799 0XXX7XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H BELPRE KS
2021-07-06 620-822 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H PITTSBURG KS
2020-08-04 620-733 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H PROTECTION KS
2020-08-04 620-944 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H FOWLER KS
2020-06-30 620-677 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks → FRACTEL, LLC 965H PLAINS KS
2020-06-30 620-788 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 6 holders which blocks → FRACTEL, LLC 965H MOLINE KS
2020-06-30 620-833 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 8 holders which blocks → FRACTEL, LLC 965H HUTCHINSON KS
2020-06-30 620-844 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H HAMILTON KS
2020-06-30 620-977 0XXX1XXX2XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → FRACTEL, LLC 965H MINNEOLA KS
2019-03-20 620-529 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H ST PAUL KS
2019-03-20 620-946 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → FRACTEL, LLC 965H CHETOPA KS
2019-03-14 620-900 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H BUCKLIN KS
2019-01-28 620-444 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H GARDENCITY KS
2019-01-28 620-666 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H FLORENCE KS
2019-01-28 620-800 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H ANTHONY KS

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.