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
2014-12-12	501-482-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	FERNDALE	AR
2014-12-12	501-662-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	PERRY	AR
2014-12-12	501-703-2XXX	2000–2999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	LONOKE	AR
2014-12-12	501-815-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	JONESMILLS	AR
2014-12-12	501-849-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	ENOLA	AR
2014-12-12	501-881-6XXX	6000–6999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	HOTSPRINGS	AR
2014-12-12	501-915-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	JESSIEVL	AR
2014-12-12	501-939-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	LONSDALE	AR
2014-12-11	501-239-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BEEBE	AR
2014-12-11	501-314-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	GREENBRIER	AR
2014-12-11	501-335-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	DAMASCUS	AR
2014-12-11	501-481-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BRYANTCGVL	AR
2014-12-11	501-504-8XXX	8000–8999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CONWAY	AR
2014-12-11	501-507-6XXX	6000–6999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BENTON	AR
2014-12-11	501-510-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2014-12-11	501-602-4XXX	4000–4999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BAUXITE	AR
2014-12-11	501-669-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CLEVELAND	AR
2014-12-11	501-759-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BIGELOW	AR
2014-12-11	501-991-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CRYSTALSPG	AR
2014-12-09	501-345-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	PLEASANTPL	AR
2014-12-09	501-482-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FERNDALE	AR
2014-12-09	501-729-8XXX	8000–8999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	JUDSONIA	AR
2014-12-05	501-323-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	GRIFFITHVL	AR
2014-12-05	501-344-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	BRADFORD	AR
2014-12-05	501-415-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2014-12-05	501-415-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	LONOKE	AR
2014-12-03	501-819-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SYVNHLSHWD	AR
2014-12-03	501-819-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	SYVNHLSHWD	AR
2014-11-25	501-333-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MAUMELLE	AR
2014-11-25	501-402-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GREENBRIER	AR
2014-11-24	501-422-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CABOT	AR
2014-11-24	501-507-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2014-11-24	501-507-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	BENTON	AR
2014-11-19	501-881-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOTSPRINGS	AR
2014-11-19	501-881-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOTSPRINGS	AR
2014-11-17	501-943-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	BRYANTCGVL	AR
2014-11-13	501-557-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	BAUXITE	AR
2014-11-10	501-864-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2014-11-10	501-864-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2014-11-10	501-864-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2014-11-10	501-864-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	SYVNHLSHWD	AR
2014-11-07	501-502-1XXX	1000–1999	Assigned	SOUTHWESTERN BELL	9533	LITTLEROCK	AR
2014-11-06	501-200-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	REDFIELD	AR
2014-11-06	501-285-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	ENGLAND	AR
2014-11-06	501-299-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	KENSETT	AR
2014-11-06	501-422-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CABOT	AR
2014-11-06	501-434-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MCRAE	AR
2014-11-06	501-983-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	JACKSONVL	AR
2014-11-05	501-530-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	BALD KNOB	AR
2014-10-28	501-209-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - AR	196F	JESSIEVL	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.