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 318
PAETEC ITEL, LLC 18
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
2022-03-28 318-821 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J MONROE LA
2005-04-28 318-903 0XXX2XXX3XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J VIDALIA LA
2005-04-28 318-907 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WINNSBORO LA
2005-04-26 318-743 0XXX2XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J DOYLINE LA
2005-04-26 318-905 0XXX1XXX3XXX4XXX5XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J BENTON LA
2005-04-26 318-909 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J HAUGHTON LA
2005-04-26 318-916 none assigned yet which blocks → PAETEC ITEL, LLC 829J MOORINGSPT LA
2005-02-16 318-973 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J GREENWOOD LA
2003-01-30 318-462 none assigned yet which blocks → PAETEC ITEL, LLC 829J JONESBORO LA
2003-01-30 318-468 not yet reported which blocks → PAETEC ITEL, LLC 829J GRAMBLING LA
2001-10-29 318-805 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J MONROE LA
2001-06-12 318-550 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J SHREVEPORT LA
2001-06-12 318-880 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J ALEXANDRIA LA
— 318-415 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J SHREVEPORT LA
— 318-509 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MONROE LA
— 318-514 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J RUSTON LA
— 318-554 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J NATCHITCHS LA
— 318-814 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J BASTROP LA

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.