Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, all time — NPA 913

SOUTHWESTERN BELL 164

AERIAL COMMUNICATIONS, INC. 86

NEW CINGULAR WIRELESS PCS, LLC - IL 33

ONVOY, LLC - KS 30

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 23

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
2012-07-03	913-333	0–9 XXXall 10 · 4 holders which blocks →	AVID COMMUNICATIONS, LLC - KS	742D	KANSASCITY	KS
2012-05-10	913-225	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS	6532	KANSASCITY	KS
2012-02-28	913-216	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS	6532	KANSASCITY	KS
2012-02-22	913-215	0–9 XXXall 10 · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	GARDNER	KS
2012-02-01	913-214	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	KANSASCITY	KS
2012-01-30	913-202	0–9 XXXall 10 · 7 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2012-01-30	913-210	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	OLATHE	KS
2011-11-17	913-201	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2011-09-15	913-213	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2011-07-26	913-237	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2011-06-13	913-235	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2011-05-27	913-241	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KS	2240	KANSASCITY	KS
2011-05-20	913-230	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	KANSASCITY	KS
2011-05-13	913-777	0–9 XXXall 10 · 6 holders which blocks →	AVID COMMUNICATIONS, LLC - KS	742D	KANSASCITY	KS
2011-05-04	913-223	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2011-03-16	913-200	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2011-03-10	913-954	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2011-01-20	913-998	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2010-11-18	913-553	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2010-10-29	913-800	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS	6532	KANSASCITY	KS
2010-10-26	913-475	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2010-10-06	913-617	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2010-04-15	913-605	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	GARDNER	KS
2010-04-15	913-912	0–9 XXXall 10 · 5 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	KANSASCITY	KS
2010-02-03	913-951	0–9 XXXall 10 · 5 holders which blocks →	EVERFAST FIBER NETWORKS LLC	3915	KANSASCITY	KS
2009-12-07	913-601	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2009-08-19	913-953	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2009-02-25	913-608	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2008-12-01	913-689	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - KS	8995	KANSASCITY	KS
2008-10-08	913-609	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2008-07-08	913-749	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - KS	8995	KANSASCITY	KS
2008-07-07	913-735	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - KS	986E	KANSASCITY	KS
2008-05-02	913-827	0–9 XXXall 10 · 5 holders which blocks →	SOUTHWESTERN BELL	9533	KANSASCITY	KS
2008-03-03	913-732	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - KS	986E	OLATHE	KS
2008-01-11	913-850	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2007-12-18	913-603	0–9 XXXall 10 · 6 holders which blocks →	IDEATEK TELCOM, LLC - KS	014E	GARDNER	KS
2007-11-26	913-956	0–9 XXXall 10 · 3 holders which blocks →	EVERFAST FIBER NETWORKS LLC	3915	KANSASCITY	KS
2007-11-19	913-653	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2007-07-16	913-957	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2007-06-27	913-633	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2007-04-16	913-952	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2007-04-09	913-948	0–9 XXXall 10 · 2 holders which blocks →	EVERFAST FIBER NETWORKS LLC	3915	KANSASCITY	KS
2006-11-16	913-575	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2006-11-15	913-366	not yet reported which blocks →	RAINBOW COMMUNICATIONS, LLC - KS	330D	ELWOOD	KS
2006-11-15	913-742	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2006-11-01	913-687	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2006-10-12	913-602	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS
2006-10-11	913-944	0–9 XXXall 10 · 3 holders which blocks →	AVID COMMUNICATIONS, LLC - KS	742D	KANSASCITY	KS
2006-05-25	913-945	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS	7593	KANSASCITY	KS
2006-05-19	913-999	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KANSASCITY	KS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.