Recent thousands-block assignments

17 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 424

ONVOY, LLC - CA 15

OPENTACT INC. 1

NEW CINGULAR WIRELESS PCS, LLC 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
2019-08-22	424-331-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	INGLEWOOD	CA
2019-08-22	424-541-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	INGLEWOOD	CA
2019-08-21	424-432-0XXX	0000–0999	Assigned	TELNYX LLC	073H	AVALON	CA
2019-08-15	424-422-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	MALIBU	CA
2019-08-15	424-438-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	BEVERLYHLS	CA
2019-08-15	424-438-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	BEVERLYHLS	CA
2019-08-15	424-440-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	W ANGELES	CA
2019-08-13	424-409-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	REDONDO	CA
2019-08-13	424-422-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	MALIBU	CA
2019-08-13	424-434-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	CULVERCITY	CA
2019-08-13	424-435-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	TORRANCE	CA
2019-08-09	424-431-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	BEVERLYHLS	CA
2019-08-09	424-758-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	CMTN CMTN	CA
2019-08-09	424-758-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	CMTN CMTN	CA
2019-08-09	424-758-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	CMTN CMTN	CA
2019-08-07	424-437-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	HAWTHORNE	CA
2019-08-05	424-420-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2019-08-05	424-420-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2019-08-05	424-431-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	BEVERLYHLS	CA
2019-08-05	424-431-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	BEVERLYHLS	CA
2019-08-05	424-431-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	BEVERLYHLS	CA
2019-08-05	424-431-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	BEVERLYHLS	CA
2019-08-05	424-434-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	CULVERCITY	CA
2019-08-05	424-436-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	SNMN SNMN	CA
2019-08-05	424-436-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SNMN SNMN	CA
2019-08-05	424-436-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	SNMN SNMN	CA
2019-08-05	424-450-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	SAN PEDRO	CA
2019-08-05	424-450-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SAN PEDRO	CA
2019-07-29	424-440-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	W ANGELES	CA
2019-07-29	424-440-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	W ANGELES	CA
2019-07-24	424-758-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	CMTN CMTN	CA
2019-07-18	424-432-1XXX	1000–1999	Assigned	VOIP INNOVATIONS, LLC	597F	AVALON	CA
2019-07-17	424-450-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SAN PEDRO	CA
2019-07-12	424-430-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	CMTN GRDN	CA
2019-07-11	424-431-2XXX	2000–2999	Assigned	VOIP INNOVATIONS, LLC	597F	BEVERLYHLS	CA
2019-07-05	424-364-3XXX	3000–3999	Assigned	METROPCS NETWORKS, LLC	899D	SAN PEDRO	CA
2019-07-05	424-430-7XXX	7000–7999	Assigned	METROPCS NETWORKS, LLC	899D	CMTN GRDN	CA
2019-07-05	424-430-8XXX	8000–8999	Assigned	METROPCS NETWORKS, LLC	899D	CMTN GRDN	CA
2019-07-05	424-440-6XXX	6000–6999	Assigned	METROPCS NETWORKS, LLC	899D	W ANGELES	CA
2019-07-05	424-440-7XXX	7000–7999	Assigned	METROPCS NETWORKS, LLC	899D	W ANGELES	CA
2019-07-05	424-541-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2019-07-05	424-541-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2019-07-05	424-541-4XXX	4000–4999	Assigned	METROPCS NETWORKS, LLC	899D	INGLEWOOD	CA
2019-07-02	424-429-7XXX	7000–7999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA	7240	CMTN CMTN	CA
2019-07-01	424-420-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2019-06-28	424-420-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	INGLEWOOD	CA
2019-06-27	424-431-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	BEVERLYHLS	CA
2019-06-21	424-328-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	LOMITA	CA
2019-06-21	424-409-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	REDONDO	CA
2019-06-21	424-499-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	EL SEGUNDO	CA

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.