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

TELEPORT COMMUNICATIONS AMERICA LA - LLC 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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2021-06-29	318-782	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	ALEXANDRIA	LA
2021-03-19	318-760	0XXX1XXX6XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	COUSHATTA	LA
2017-04-04	318-679	0XXX1XXX2XXX6XXX8XXX9XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	CROWVILLE	LA
2015-07-27	318-661	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	RAYVILLE	LA
2015-01-15	318-660	0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	SPRINGHILL	LA
2014-09-16	318-610	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	KEITHVILLE	LA
2009-06-08	318-414	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	VIDALIA	LA
2008-04-30	318-639	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	MINDEN	LA
—	318-655	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	SHREVEPORT	LA
—	318-840	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	SHREVEPORT	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.