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
2014-03-17	501-932-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CONWAY	AR
2014-03-14	501-408-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2014-03-07	501-388-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	SEARCY	AR
2014-03-07	501-547-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	HOTSPRINGS	AR
2014-02-25	501-404-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-404-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-404-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-404-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-481-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	BRYANTCGVL	AR
2014-02-25	501-487-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SYVNHLSHWD	AR
2014-02-25	501-547-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	HOTSPRINGS	AR
2014-02-25	501-594-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	PARON	AR
2014-02-25	501-725-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-725-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-25	501-725-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	LITTLEROCK	AR
2014-02-24	501-483-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PALARM	AR
2014-02-20	501-625-8XXX	8000–8999	Assigned	SOUTHWESTERN BELL	9533	HOTSPRINGS	AR
2014-02-11	501-475-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPRINGLAKE	AR
2014-01-30	501-703-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2014-01-30	501-722-9XXX	9000–9999	Assigned	LEVEL 3 TELECOM OF ARKANSAS, LLC - AR	7264	BENTON	AR
2014-01-27	501-237-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2014-01-24	501-487-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2014-01-24	501-487-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	SYVNHLSHWD	AR
2014-01-24	501-487-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2013-12-30	501-204-4XXX	4000–4999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	JESSIEVL	AR
2013-12-30	501-204-5XXX	5000–5999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	JESSIEVL	AR
2013-12-30	501-229-1XXX	1000–1999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	MALVERN	AR
2013-12-30	501-237-4XXX	4000–4999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	LONOKE	AR
2013-12-30	501-241-7XXX	7000–7999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	JACKSONVL	AR
2013-12-30	501-270-3XXX	3000–3999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	HEBER SPG	AR
2013-12-30	501-270-4XXX	4000–4999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	HEBER SPG	AR
2013-12-30	501-286-4XXX	4000–4999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	CABOT	AR
2013-12-30	501-286-6XXX	6000–6999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	CABOT	AR
2013-12-30	501-289-6XXX	6000–6999	Assigned	TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR	048G	MORRILTON	AR
2013-12-13	501-204-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	JESSIEVL	AR
2013-12-12	501-523-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SCOTT	AR
2013-12-11	501-367-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	PINNACLE	AR
2013-12-11	501-475-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SPRINGLAKE	AR
2013-12-10	501-725-4XXX	4000–4999	Assigned	COMCAST IP PHONE, LLC	318J	LITTLEROCK	AR
2013-11-08	501-408-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	BENTON	AR
2013-11-08	501-825-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	GREERSFRRY	AR
2013-10-24	501-237-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2013-10-24	501-237-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2013-10-18	501-229-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MALVERN	AR
2013-10-18	501-242-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MORRILTON	AR
2013-10-18	501-380-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	SEARCY	AR
2013-10-15	501-547-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	HOTSPRINGS	AR
2013-10-08	501-819-6XXX	6000–6999	Assigned	COMCAST IP PHONE, LLC	318J	SYVNHLSHWD	AR
2013-10-01	501-725-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	LITTLEROCK	AR
2013-09-27	501-408-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	BENTON	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.