Recent thousands-block assignments

25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 501

ONVOY, LLC - AR 15

BANDWIDTH.COM CLEC, LLC - AR 5

CSC WIRELESS, LLC 2

NEW CINGULAR WIRELESS PCS, LLC - IL 1

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 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
2013-09-27	501-408-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2013-09-06	501-404-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-09-04	501-408-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2013-09-04	501-420-1XXX	1000–1999	Assigned	COMCAST IP PHONE, LLC	318J	LITTLEROCK	AR
2013-08-19	501-358-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	CONWAY	AR
2013-08-14	501-380-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SEARCY	AR
2013-08-14	501-533-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSONVL	AR
2013-08-14	501-533-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSONVL	AR
2013-08-13	501-287-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	GREENBRIER	AR
2013-08-13	501-388-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	SEARCY	AR
2013-07-22	501-943-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	BRYANTCGVL	AR
2013-07-18	501-386-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	CENTER RDG	AR
2013-07-05	501-404-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-07-03	501-725-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-05-15	501-209-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	JESSIEVL	AR
2013-05-03	501-404-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	LITTLEROCK	AR
2013-04-11	501-849-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ENOLA	AR
2013-04-10	501-408-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2013-03-29	501-267-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	MALVERN	AR
2013-03-29	501-483-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	PALARM	AR
2013-03-28	501-475-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPRINGLAKE	AR
2013-03-28	501-533-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSONVL	AR
2013-03-28	501-673-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PINNACLE	AR
2013-03-28	501-796-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VILONIA	AR
2013-03-28	501-803-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PALARM	AR
2013-03-28	501-817-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FERNDALE	AR
2013-03-28	501-992-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SYVNHLSHWD	AR
2013-03-12	501-701-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	HOTSPRINGS	AR
2013-03-05	501-557-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BAUXITE	AR
2013-02-19	501-287-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	GREENBRIER	AR
2013-02-14	501-404-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-02-14	501-712-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-02-14	501-712-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	LITTLEROCK	AR
2013-02-05	501-267-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	MALVERN	AR
2013-02-05	501-408-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	BENTON	AR
2012-12-18	501-485-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	PINNACLE	AR
2012-12-07	501-482-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	FERNDALE	AR
2012-12-05	501-203-0XXX	0000–0999	Assigned	E. RITTER COMMUNICATIONS, LLC	128L	SEARCY	AR
2012-11-14	501-239-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	BEEBE	AR
2012-11-06	501-404-1XXX	1000–1999	Assigned	NUSO, LLC	551G	LITTLEROCK	AR
2012-10-30	501-651-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	HOTSPRINGS	AR
2012-10-16	501-242-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	MORRILTON	AR
2012-10-15	501-237-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LONOKE	AR
2012-10-15	501-408-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BENTON	AR
2012-10-15	501-732-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MALVERN	AR
2012-10-15	501-881-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOTSPRINGS	AR
2012-10-01	501-504-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	CONWAY	AR
2012-09-27	501-287-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	GREENBRIER	AR
2012-09-19	501-232-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	BEEBE	AR
2012-09-19	501-436-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SYVNHLSHWD	AR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.