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
2019-09-05	501-316-3XXX	3000–3999	Assigned	ONVOY, LLC - AR	348F	BENTON	AR
2019-08-19	501-298-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPRINGLAKE	AR
2019-08-12	501-992-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SYVNHLSHWD	AR
2019-08-06	501-369-1XXX	1000–1999	Assigned	EXIANT COMMUNICATIONS LLC	114J	LITTLEROCK	AR
2019-08-05	501-263-9XXX	9000–9999	Assigned	AIRUS, INC. - AR	578H	LITTLEROCK	AR
2019-07-09	501-363-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	HOTSPRINGS	AR
2019-07-09	501-514-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	CONWAY	AR
2019-06-21	501-298-8XXX	8000–8999	Assigned	TELNYX LLC	073H	SPRINGLAKE	AR
2019-06-21	501-361-0XXX	0000–0999	Assigned	TELNYX LLC	073H	BRYANTCGVL	AR
2019-06-21	501-367-3XXX	3000–3999	Assigned	TELNYX LLC	073H	PINNACLE	AR
2019-06-21	501-448-9XXX	9000–9999	Assigned	TELNYX LLC	073H	FERNDALE	AR
2019-06-21	501-534-3XXX	3000–3999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	LITTLEROCK	AR
2019-06-21	501-737-2XXX	2000–2999	Assigned	TELNYX LLC	073H	SCOTT	AR
2019-06-21	501-833-4XXX	4000–4999	Assigned	TELNYX LLC	073H	SYVNHLSHWD	AR
2019-06-21	501-851-9XXX	9000–9999	Assigned	TELNYX LLC	073H	PALARM	AR
2019-06-13	501-363-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	HOTSPRINGS	AR
2019-06-11	501-361-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	BRYANTCGVL	AR
2019-06-11	501-737-9XXX	9000–9999	Assigned	AIRUS, INC. - AR	578H	SCOTT	AR
2019-06-03	501-356-0XXX	0000–0999	Assigned	CSC WIRELESS, LLC	425J	JESSIEVL	AR
2019-05-08	501-315-8XXX	8000–8999	Assigned	ONVOY, LLC - AR	348F	BENTON	AR
2019-05-03	501-534-4XXX	4000–4999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	LITTLEROCK	AR
2019-04-23	501-273-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	CONWAY	AR
2019-04-10	501-355-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	LITTLEROCK	AR
2019-04-10	501-355-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	LITTLEROCK	AR
2019-04-10	501-355-5XXX	5000–5999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR	7277	LITTLEROCK	AR
2019-04-10	501-500-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	LITTLEROCK	AR
2019-03-28	501-338-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	BISMARCK	AR
2019-03-28	501-356-2XXX	2000–2999	Assigned	CSC WIRELESS, LLC	425J	JESSIEVL	AR
2019-03-28	501-357-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	DONALDSON	AR
2019-03-15	501-315-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	BENTON	AR
2019-03-14	501-222-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	WRIGHTSVL	AR
2019-03-14	501-236-5XXX	5000–5999	Assigned	ONVOY, LLC - AR	348F	SEARCY	AR
2019-03-14	501-236-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	SEARCY	AR
2019-03-14	501-273-1XXX	1000–1999	Assigned	ONVOY, LLC - AR	348F	CONWAY	AR
2019-03-14	501-273-3XXX	3000–3999	Assigned	ONVOY, LLC - AR	348F	CONWAY	AR
2019-03-14	501-285-8XXX	8000–8999	Assigned	ONVOY, LLC - AR	348F	ENGLAND	AR
2019-03-14	501-285-9XXX	9000–9999	Assigned	ONVOY, LLC - AR	348F	ENGLAND	AR
2019-03-14	501-392-9XXX	9000–9999	Assigned	ONVOY, LLC - AR	348F	SYVNHLSHWD	AR
2019-03-14	501-436-7XXX	7000–7999	Assigned	ONVOY, LLC - AR	348F	SYVNHLSHWD	AR
2019-03-14	501-457-9XXX	9000–9999	Assigned	ONVOY, LLC - AR	348F	JACKSONVL	AR
2019-03-14	501-506-0XXX	0000–0999	Assigned	ONVOY, LLC - AR	348F	GRIFFITHVL	AR
2019-03-14	501-506-1XXX	1000–1999	Assigned	ONVOY, LLC - AR	348F	GRIFFITHVL	AR
2019-03-14	501-530-8XXX	8000–8999	Assigned	ONVOY, LLC - AR	348F	BALD KNOB	AR
2019-03-14	501-530-9XXX	9000–9999	Assigned	ONVOY, LLC - AR	348F	BALD KNOB	AR
2019-03-14	501-534-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	LITTLEROCK	AR
2019-03-14	501-550-8XXX	8000–8999	Assigned	ONVOY, LLC - AR	348F	GREERSFRRY	AR
2019-03-14	501-550-9XXX	9000–9999	Assigned	ONVOY, LLC - AR	348F	GREERSFRRY	AR
2019-03-14	501-596-0XXX	0000–0999	Assigned	ONVOY, LLC - AR	348F	JACKSONVL	AR
2019-03-14	501-858-1XXX	1000–1999	Assigned	ONVOY, LLC - AR	348F	BEEBE	AR
2019-03-14	501-858-6XXX	6000–6999	Assigned	ONVOY, LLC - AR	348F	BEEBE	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.