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 858

ONVOY, LLC - CA 13

EXIANT COMMUNICATIONS LLC 2

NEW CINGULAR WIRELESS PCS, LLC 1

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 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
2020-12-14	858-293-9XXX	9000–9999	Assigned	TELNYX LLC	073H	SNDG MRMS	CA
2020-12-14	858-667-0XXX	0000–0999	Assigned	TELNYX LLC	073H	SNDG LVTA	CA
2020-12-14	858-667-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	SNDG LVTA	CA
2020-12-14	858-667-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	SNDG LVTA	CA
2020-12-14	858-727-0XXX	0000–0999	Assigned	TELNYX LLC	073H	SNDG SNDG	CA
2020-12-14	858-733-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	RNCHOPNQTS	CA
2020-12-14	858-733-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	RNCHOPNQTS	CA
2020-12-14	858-815-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	RNCHOBRNDO	CA
2020-12-14	858-815-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	RNCHOBRNDO	CA
2020-12-14	858-833-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNDG SNDG	CA
2020-12-14	858-833-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNDG SNDG	CA
2020-12-11	858-227-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	RNCHOSANFE	CA
2020-12-10	858-599-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	NATIONALCY	CA
2020-12-10	858-599-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	NATIONALCY	CA
2020-12-08	858-883-7XXX	7000–7999	Assigned	TERRA NOVA TELECOM INC.	145J	POWAY	CA
2020-12-04	858-667-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	SNDG LVTA	CA
2020-12-04	858-667-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	SNDG LVTA	CA
2020-12-04	858-667-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	SNDG LVTA	CA
2020-12-04	858-667-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	SNDG LVTA	CA
2020-12-02	858-504-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	RNCHOSANFE	CA
2020-12-02	858-977-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	DEL MAR	CA
2020-12-02	858-977-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	DEL MAR	CA
2020-12-02	858-977-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	DEL MAR	CA
2020-11-19	858-833-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	SNDG SNDG	CA
2020-11-19	858-833-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	SNDG SNDG	CA
2020-11-19	858-833-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SNDG SNDG	CA
2020-11-19	858-833-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	SNDG SNDG	CA
2020-11-13	858-833-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2020-11-13	858-833-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2020-11-13	858-833-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2020-11-13	858-867-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2020-11-11	858-358-0XXX	0000–0999	Assigned	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	EL CAJON	CA
2020-11-11	858-727-6XXX	6000–6999	Assigned	TON80 COMMUNICATIONS, LLC	516J	SNDG SNDG	CA
2020-11-09	858-667-8XXX	8000–8999	Assigned	FRACTEL, LLC	965H	SNDG LVTA	CA
2020-11-06	858-358-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	EL CAJON	CA
2020-11-06	858-358-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	EL CAJON	CA
2020-11-06	858-358-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	EL CAJON	CA
2020-11-06	858-358-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	EL CAJON	CA
2020-11-06	858-358-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	EL CAJON	CA
2020-11-05	858-214-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	LA JOLLA	CA
2020-11-05	858-214-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	LA JOLLA	CA
2020-11-05	858-269-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	POWAY	CA
2020-11-05	858-269-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	POWAY	CA
2020-11-04	858-867-1XXX	1000–1999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA	7240	SNDG SNDG	CA
2020-11-04	858-867-2XXX	2000–2999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA	7240	SNDG SNDG	CA
2020-10-28	858-293-0XXX	0000–0999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7147	SNDG MRMS	CA
2020-10-27	858-599-0XXX	0000–0999	Assigned	TELNYX LLC	073H	NATIONALCY	CA
2020-10-21	858-428-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	RNCHOPNQTS	CA
2020-10-21	858-834-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	RNCHOPNQTS	CA
2020-10-20	858-293-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	SNDG MRMS	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.