Recent prefix assignments

341 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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 21

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
2014-11-14	913-282	0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2014-11-14	915-304	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	EL PASO	TX
2014-11-14	949-560	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	IRVINE	CA
2014-11-13	210-876	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	SANANTONIO	TX
2014-11-13	262-583	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	RACINE	WI
2014-11-13	385-498	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	AMERCNFORK	UT
2014-11-13	470-275	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	ATLANTA NE	GA
2014-11-13	571-524	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HERNDON	VA
2014-11-13	573-869	0XXX3XXX · 2 holders which blocks →	CHARITON VALLEY COMMUNICATIONS CORPORATION	250A	PALMYRA	MO
2014-11-13	575-629	0XXX1XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NM	123F	TULAROSA	NM
2014-11-13	623-227	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	PHOENIX	AZ
2014-11-13	646-830	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
2014-11-13	646-869	0–9 XXXwhole prefix which blocks →	TWC IP ENABLED SERVICES, LLC	793K	NWYRCYZN01	NY
2014-11-13	646-923	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN01	NY
2014-11-13	804-295	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CHESTER	VA
2014-11-13	816-406	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MO	993E	BELTON	MO
2014-11-13	901-614	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	MEMPHIS	TN
2014-11-13	913-278	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - KS	986E	KANSASCITY	KS
2014-11-13	929-341	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN09	NY
2014-11-13	929-362	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY	7133	NWYRCYZN09	NY
2014-11-12	312-883	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	CHICGOZN01	IL
2014-11-12	470-485	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	ATLANTA NE	GA
2014-11-12	605-219	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD	6569	RAPID CITY	SD
2014-11-12	605-824	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD	6569	ABERDEEN	SD
2014-11-12	612-430	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2014-11-12	614-814	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	COLUMBUS	OH
2014-11-12	763-312	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	CAMBRIDGE	MN
2014-11-12	786-720	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MIAMI	FL
2014-11-12	971-412	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	NEWBERG	OR
2014-11-11	301-269	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	WSHNGTNZN2	MD
2014-11-11	319-549	1XXX2XXX8XXX9XXX · 3 holders which blocks →	FARM & MERCH MUTUAL TELCO DBA KALONA COOP TEL	198H	OLDS	IA
2014-11-11	415-650	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SNFC MT-EV	CA
2014-11-11	479-308	0–9 XXXall 10 · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	FORT SMITH	AR
2014-11-11	513-913	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CINCINNATI	OH
2014-11-11	559-574	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	PARLIER	CA
2014-11-11	559-754	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	VISALIA	CA
2014-11-11	646-893	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN01	NY
2014-11-11	720-575	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CO	026D	DENVER	CO
2014-11-11	720-699	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CO	026D	DENVER	CO
2014-11-11	814-803	0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	BEDFORD	PA
2014-11-11	865-412	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	GATLINBURG	TN
2014-11-11	903-426	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	TYLER	TX
2014-11-11	916-272	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM MAIN	CA
2014-11-11	929-337	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN06	NY
2014-11-11	929-352	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN10	NY
2014-11-10	248-791	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	PONTIAC	MI
2014-11-10	312-313	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	CHICGOZN01	IL
2014-11-10	331-276	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	ST CHARLES	IL
2014-11-10	408-669	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SNJS SOUTH	CA
2014-11-10	424-383	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	REDONDO	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.