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
—	862-303	0–9 XXXall 10 · 7 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	BRANCHVL	NJ
—	862-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-314	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	W MILFORD	NJ
—	862-317	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	NEWARK	NJ
—	862-338	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	NEWARK	NJ
—	862-373	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	NEWARK	NJ
—	862-382	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks →	COMMIO, LLC	939H	ANDOVER	NJ
—	862-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-500	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - NJ	637C	MT FREEDOM	NJ
—	862-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	NJ
—	862-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-700	not yet reported which blocks →				NJ
—	862-702	0–9 XXXall 10 · 8 holders which blocks →	COMCAST IP PHONE, LLC	318J	CALDWELL	NJ
—	862-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-766	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	ORANGE	NJ
—	862-777	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	MORRISTOWN	NJ
—	862-782	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PASSAIC	NJ
—	862-800	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	NEWARK	NJ
—	862-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-950	not yet reported which blocks →				NJ
—	862-958	not yet reported which blocks →				NJ
—	862-959	not yet reported which blocks →			NEWARK	NJ
—	862-976	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	NJ
—	862-999	0–9 XXXall 10 · 3 holders which blocks →	CABLEVISION LIGHTPATH, INC. - NJ	4948	CALDWELL	NJ
—	863-201	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	AVON PARK	FL
—	863-202	1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	SEBRING	FL
—	863-205	0XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	METROPCS NETWORKS, LLC	899D	BARTOW	FL
—	863-206	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	WINTER HVN	FL
—	863-207	8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	WINTER HVN	FL
—	863-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	FL
—	863-214	0XXX2XXX7XXX which blocks →	METROPCS, INC.	5562	SEBRING	FL
—	863-215	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	LAKE WALES	FL
—	863-216	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	HAINESCITY	FL
—	863-217	not yet reported which blocks →	SPOK, INC.	6630	WINTER HVN	FL
—	863-221	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL
—	863-222	0–9 XXXall 10 · 7 holders which blocks →	IP HORIZON LLC	515J	WAUCHULA	FL
—	863-223	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	MCI WORLDCOM COMMUNICATIONS, INC. - FL	7448	LAKE WALES	FL
—	863-224	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTER HVN	FL
—	863-226	2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	LAKELAND	FL
—	863-227	1XXX2XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	METROPCS, INC.	5562	MOOREHAVEN	FL
—	863-228	5XXX8XXX9XXX · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CLEWISTON	FL
—	863-229	3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	MCI WORLDCOM COMMUNICATIONS, INC. - FL	7448	WINTER HVN	FL
—	863-230	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	PAETEC ITEL, LLC	829J	LABELLE	FL
—	863-231	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	PAETEC ITEL, LLC	829J	ARCADIA	FL
—	863-232	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	LAKE WALES	FL
—	863-234	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	METROPCS, INC.	5562	LABELLE	FL
—	863-236	0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 TELECOM OF FLORIDA, LP - FL	7635	HAINESCITY	FL
—	863-239	not yet reported which blocks →				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.