Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 928

INTRADO COMMUNICATIONS, LLC 3

CSC WIRELESS, LLC 2

AHOI LLC 2

NEW CINGULAR WIRELESS PCS, LLC 1

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 1

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 thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2012-02-06	928-224-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	WINSLOW	AZ
2012-02-06	928-228-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PIMA	AZ
2012-02-06	928-366-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	YUMA	AZ
2012-02-06	928-366-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	YUMA	AZ
2012-01-26	928-769-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PEACH SPG	AZ
2012-01-19	928-248-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	YUMA	AZ
2012-01-10	928-366-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	YUMA	AZ
2011-12-27	928-366-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	YUMA	AZ
2011-12-14	928-852-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	SEDONA	AZ
2011-12-13	928-482-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	GILA BEND	AZ
2011-12-07	928-315-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	SOMERTON	AZ
2011-12-06	928-315-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	SOMERTON	AZ
2011-12-06	928-817-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	YUMA	AZ
2011-12-02	928-259-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YUMA	AZ
2011-12-02	928-259-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YUMA	AZ
2011-11-30	928-515-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PRESCOTT	AZ
2011-11-29	928-259-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	YUMA	AZ
2011-11-28	928-248-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	YUMA	AZ
2011-11-23	928-315-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	SOMERTON	AZ
2011-11-14	928-259-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YUMA	AZ
2011-11-09	928-614-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PAGE	AZ
2011-11-08	928-288-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	WINSLOW	AZ
2011-10-26	928-433-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	FLAGSTAFF	AZ
2011-09-21	928-856-7XXX	7000–7999	Assigned	ONVOY, LLC - AZ	630E	FLAGSTAFF	AZ
2011-09-15	928-379-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PRESCOTT	AZ
2011-09-13	928-235-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	SAFFORD	AZ
2011-08-31	928-514-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	BULLHEADCY	AZ
2011-08-31	928-514-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	BULLHEADCY	AZ
2011-08-09	928-228-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PIMA	AZ
2011-08-09	928-228-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PIMA	AZ
2011-07-20	928-259-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	YUMA	AZ
2011-07-18	928-224-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	WINSLOW	AZ
2011-06-29	928-237-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PRESCOTT	AZ
2011-05-23	928-614-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	PAGE	AZ
2011-05-18	928-852-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	SEDONA	AZ
2011-05-02	928-235-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	SAFFORD	AZ
2011-05-02	928-613-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AZ	587F	WINSLOW	AZ
2011-04-29	928-258-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	AGUILA	AZ
2011-04-26	928-228-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PIMA	AZ
2011-04-26	928-315-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	SOMERTON	AZ
2011-04-26	928-662-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PARKER DAM	AZ
2011-04-26	928-851-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	BOUSE	AZ
2011-04-22	928-892-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	SHOW LOW	AZ
2011-04-20	928-259-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	YUMA	AZ
2011-04-20	928-259-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	YUMA	AZ
2011-04-01	928-315-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SOMERTON	AZ
2011-03-23	928-444-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	BULLHEADCY	AZ
2011-03-17	928-228-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PIMA	AZ
2011-03-17	928-297-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	HOLBROOK	AZ
2011-03-17	928-514-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	BULLHEADCY	AZ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.