Recent prefix assignments

8 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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, last 30 days — NPA 837

ONVOY, LLC - CA 3

WIDE VOICE, LLC - CA 2

EXIANT COMMUNICATIONS LLC 2

OPENTACT INC. 1

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
2026-09-02	837-200	3XXX4XXX which blocks →	ONVOY, LLC - CA	649C	NTAH THCY	CA
2026-09-02	837-222	2XXX which blocks →	OPENTACT INC.	824J	RED BLUFF	CA
2026-09-02	837-333	3XXX which blocks →	EXIANT COMMUNICATIONS LLC	114J	REDDING	CA
2026-09-02	837-444	4XXX which blocks →	EXIANT COMMUNICATIONS LLC	114J	CHICO	CA
2026-09-01	837-999	1XXX9XXX which blocks →	WIDE VOICE, LLC - CA	252F	NEVADACITY	CA
2026-08-28	837-776	7XXX which blocks →	ONVOY, LLC - CA	649C	REDDING	CA
2026-08-28	837-888	8XXX which blocks →	ONVOY, LLC - CA	649C	SHINGLESPG	CA
2026-08-27	837-777	7XXX8XXX9XXX · 2 holders which blocks →	WIDE VOICE, LLC - CA	252F	TRUCKEE	CA
—	837-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	CA
—	837-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-700	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-950	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-958	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-959	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA
—	837-976	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.