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
—	863-241	0XXX2XXX4XXX5XXX6XXX7XXX8XXX which blocks →	METROPCS NETWORKS, LLC	899D	LAKE WALES	FL
—	863-242	0XXX4XXX5XXX7XXX8XXX which blocks →	METROPCS NETWORKS, LLC	899D	HAINESCITY	FL
—	863-243	0XXX2XXX4XXX6XXX8XXX · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LAKEPLACID	FL
—	863-244	0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	ARCADIA	FL
—	863-245	0XXX2XXX4XXX5XXX7XXX8XXX which blocks →	METROPCS, INC.	5562	WAUCHULA	FL
—	863-248	5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	MCI WORLDCOM COMMUNICATIONS, INC. - FL	7448	LAKELAND	FL
—	863-254	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	CLEWISTON	FL
—	863-255	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	LAKELAND	FL
—	863-256	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	HAINESCITY	FL
—	863-257	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	AVON PARK	FL
—	863-258	4XXX5XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	WINTER HVN	FL
—	863-259	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	WINTER HVN	FL
—	863-262	0–9 XXXall 10 · 6 holders which blocks →	METROPCS NETWORKS, LLC	899D	LAKELAND	FL
—	863-268	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	MCI WORLDCOM COMMUNICATIONS, INC. - FL	7448	WINTER HVN	FL
—	863-269	0–9 XXXall 10 · 8 holders which blocks →	METROPCS NETWORKS, LLC	899D	WINTER HVN	FL
—	863-271	1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL
—	863-279	0–9 XXXall 10 · 6 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LAKELAND	FL
—	863-280	1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL
—	863-284	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	LAKELAND	FL
—	863-285	3XXX4XXX5XXX · 3 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	FORT MEADE	FL
—	863-287	none assigned yet which blocks →	METROPCS NETWORKS, LLC	899D	WINTER HVN	FL
—	863-288	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 TELECOM OF FLORIDA, LP - FL	7635	WINTER HVN	FL
—	863-289	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL
—	863-291	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-292	1XXX5XXX6XXX7XXX · 3 holders which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-293	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-294	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-295	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-297	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-298	2XXX which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-299	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-300	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - FL	937C	POINCIANA	FL
—	863-302	0–9 XXXall 10 · 6 holders which blocks →	METROPCS, INC.	5562	LABELLE	FL
—	863-305	not yet reported which blocks →				FL
—	863-307	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	MCI WORLDCOM COMMUNICATIONS, INC. - FL	7448	WINTER HVN	FL
—	863-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	FL
—	863-314	2XXX6XXX7XXX · 3 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	SEBRING	FL
—	863-318	7XXX which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-321	not yet reported which blocks →				FL
—	863-324	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-325	3XXX4XXX which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-326	none assigned yet which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-327	0XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	LEVEL 3 TELECOM OF FLORIDA, LP - FL	7635	LAKELAND	FL
—	863-333	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	LAKELAND	FL
—	863-342	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	LABELLE	FL
—	863-346	0–9 XXXall 10 · 4 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	LAKELAND	FL
—	863-352	not yet reported which blocks →				FL
—	863-357	not yet reported which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	OKEECHOBEE	FL
—	863-367	not yet reported which blocks →	FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA	0328	WINTER HVN	FL
—	863-375	1XXX7XXX8XXX · 2 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	BOWLNGGREN	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.