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
2002-05-14	804-243	3XXX4XXX5XXX8XXX · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	CHESTER	VA
2002-05-14	804-244	2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	MECHANCSVL	VA
2002-05-14	804-245	2XXX3XXX5XXX7XXX8XXX · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	MIDLOTHIAN	VA
2002-05-14	812-653	3XXX4XXX5XXX6XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	ORLEANS	IN
2002-05-14	812-660	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	ROCKPORT	IN
2002-05-14	912-292	2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	DOUGLAS	GA
2002-05-14	912-916	not yet reported which blocks →	PAETEC ITEL, LLC	829J	JESUP	GA
2002-05-14	913-674	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	ATCHISON	KS
2002-05-14	913-828	0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	LEAVENWTH	KS
2002-05-14	915-996	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	EL PASO	TX
2002-05-14	919-356	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	SANFORD	NC
2002-05-14	956-788	0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	AT&T - LOCAL	7421	SAN BENITO	TX
2002-05-14	989-414	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	BAY CITY	MI
2002-05-14	989-448	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	GAYLORD	MI
2002-05-14	989-488	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	MIDLAND	MI
2002-05-14	989-607	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	SAGINAW	MI
2002-05-14	989-726	0XXX1XXX2XXX3XXX5XXX7XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	WESTBRANCH	MI
2002-05-13	219-508	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	VALPARAISO	IN
2002-05-13	251-545	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2002-05-13	260-645	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	ST JOE	IN
2002-05-13	325-515	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SNYDER	TX
2002-05-13	361-232	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	8434	C CHRISTI	TX
2002-05-13	361-524	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	CUERO	TX
2002-05-13	479-431	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	FORT SMITH	AR
2002-05-13	479-439	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	FAYETTEVL	AR
2002-05-13	479-553	0XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	SOUTHWESTERN BELL	9533	BENTONVL	AR
2002-05-13	501-458	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MALVERN	AR
2002-05-13	501-881	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	HOTSPRINGS	AR
2002-05-13	507-310	1XXX which blocks →	ONVOY, LLC - MN	184D	WASECA	MN
2002-05-13	574-914	1XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	PLYMOUTH	IN
2002-05-13	605-933	4XXX5XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MITCHELL	SD
2002-05-13	608-466	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	BELOIT	WI
2002-05-13	608-467	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	MADISON	WI
2002-05-13	614-716	8XXX9XXX which blocks →	OHIO BELL TEL CO	9321	COLUMBUS	OH
2002-05-13	618-494	0–9 XXXall 10 · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	JERSEYVL	IL
2002-05-13	618-503	1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	CARBONDALE	IL
2002-05-13	618-509	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	BELLEVILLE	IL
2002-05-13	618-679	1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	MCCLURE	IL
2002-05-13	618-699	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	VANDALIA	IL
2002-05-13	618-715	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	HARRISBURG	IL
2002-05-13	715-952	0XXX1XXX2XXX5XXX7XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	STEVENS PT	WI
2002-05-13	715-953	0XXX1XXX2XXX3XXX5XXX6XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	MENOMONIE	WI
2002-05-13	715-954	0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	HOULTON	WI
2002-05-13	715-955	none assigned yet which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WI	5489	EAU CLAIRE	WI
2002-05-13	765-570	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	RUSHVILLE	IN
2002-05-13	803-883	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - SC	5258	SUMTER	SC
2002-05-13	812-638	0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	SULLIVAN	IN
2002-05-13	812-645	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	TERREHAUTE	IN
2002-05-13	812-650	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IN	4803	BLOOMINGTN	IN
2002-05-13	828-896	1XXX2XXX4XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HICKORY	NC

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.