Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	863-381	none assigned yet which blocks →	METROPCS, INC.	5562	SEBRING	FL
—	863-382	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-385	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-386	2XXX3XXX · 2 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-398	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LAKELAND	FL
—	863-401	4XXX5XXX · 2 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-402	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-407	not yet reported which blocks →				FL
—	863-410	0–9 XXXall 10 · 4 holders which blocks →	HD CARRIER LLC	321J	BARTOW	FL
—	863-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	FL
—	863-412	none assigned yet which blocks →	AERIAL COMMUNICATIONS, INC.	6701	WINTER HVN	FL
—	863-413	6XXX7XXX · 2 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	LAKELAND	FL
—	863-414	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	SEBRING	FL
—	863-419	5XXX6XXX which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-420	5XXX which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-421	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-422	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-424	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-425	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	MULBERRY	FL
—	863-427	5XXX6XXX8XXX · 2 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-428	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	MULBERRY	FL
—	863-438	1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-439	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	HAINESCITY	FL
—	863-440	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	BARTOW	FL
—	863-441	none assigned yet which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LAKEPLACID	FL
—	863-443	5XXX8XXX9XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	AVON PARK	FL
—	863-444	2XXX3XXX4XXX5XXX6XXX7XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	ARCADIA	FL
—	863-445	2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	BHN IP ENABLED SERVICES, LLC	045L	WAUCHULA	FL
—	863-446	4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	SEBRING	FL
—	863-447	5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	OKEECHOBEE	FL
—	863-448	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	WAUCHULA	FL
—	863-449	2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	AVON PARK	FL
—	863-452	none assigned yet which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	AVON PARK	FL
—	863-453	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	AVON PARK	FL
—	863-462	1XXX2XXX3XXX4XXX7XXX8XXX · 4 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	OKEECHOBEE	FL
—	863-464	3XXX4XXX6XXX8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	LAKEPLACID	FL
—	863-465	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	LAKEPLACID	FL
—	863-467	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	OKEECHOBEE	FL
—	863-471	8XXX which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-491	2XXX3XXX which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	ARCADIA	FL
—	863-494	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	ARCADIA	FL
—	863-499	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	LAKELAND	FL
—	863-501	not yet reported which blocks →	SPOK, INC.	6630	WINTER HVN	FL
—	863-502	not yet reported which blocks →	SPOK, INC.	6630	WINTER HVN	FL
—	863-508	0XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	WINTER HVN	FL
—	863-509	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOOREHAVEN	FL
—	863-510	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	LAKELAND	FL
—	863-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	FL
—	863-512	5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BARTOW	FL
—	863-514	4XXX5XXX6XXX7XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.