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 205
PAETEC ITEL, LLC 53
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2011-10-13 205-703 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2008-11-04 205-777 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2008-03-19 205-820 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2007-01-24 205-834 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
2005-12-02 205-543 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J WARRIOR AL
2002-07-30 205-775 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J CHELSEA AL
2002-03-13 205-418 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GARDENDALE AL
2002-01-31 205-341 0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J DORA AL
2002-01-31 205-433 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J GRAYSVILLE AL
2001-10-22 205-245 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J THORSBY AL
2001-10-22 205-416 2XXX3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J REFORM AL
2001-05-23 205-357 1XXX2XXX3XXX4XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J LINCOLN AL
— 205-216 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ALABASTER AL
— 205-227 3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J PELL CITY AL
— 205-228 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TRUSSVILLE AL
— 205-230 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J BESSEMER AL
— 205-277 0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BESSEMER AL
— 205-312 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CLANTON AL
— 205-313 not yet reported which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-314 9XXX which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-316 2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J CENTREVL AL
— 205-358 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ALABASTER AL
— 205-374 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J EUTAW AL
— 205-376 1XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J YORK AL
— 205-378 0XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J ALABASTER AL
— 205-380 not yet reported which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-385 8XXX which blocks → PAETEC ITEL, LLC 829J JASPER AL
— 205-397 not yet reported which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-417 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J BESSEMER AL
— 205-432 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J BESSEMER AL
— 205-451 2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-453 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BIRMINGHAM AL
— 205-469 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J TUSCALOOSA AL
— 205-523 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J TUSCALOOSA AL
— 205-561 0XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J TUSCALOOSA AL
— 205-605 2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ALABASTER AL
— 205-610 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J COLUMBIANA AL
— 205-618 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CHELSEA AL
— 205-626 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MONTEVALLO AL
— 205-628 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J CALERA AL
— 205-636 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J W BLOCTON AL
— 205-642 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J VINCENT AL
— 205-693 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J PINSON AL
— 205-694 8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GARDENDALE AL
— 205-696 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J DORA AL
— 205-713 2XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CORDOVA AL
— 205-722 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J TUSCALOOSA AL
— 205-724 1XXX6XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PARRISH AL
— 205-727 1XXX2XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CARBONHILL AL
— 205-735 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WARRIOR AL

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.