Recent thousands-block assignments

16 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 661

ONVOY, LLC - CA 10

TELEPORT COMMUNICATIONS AMERICA, LLC - CA 3

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 3

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
2017-03-22	661-797-0XXX	0000–0999	Assigned	ONVOY, LLC - CA	649C	LOST HILLS	CA
2017-03-20	661-404-5XXX	5000–5999	Assigned	BHN IP ENABLED SERVICES, LLC	045L	BKFD MAIN	CA
2017-03-15	661-293-3XXX	3000–3999	Assigned	METROPCS, INC.	5562	TAFT	CA
2017-03-15	661-404-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2017-03-15	661-404-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2017-03-14	661-221-4XXX	4000–4999	Assigned	TELNYX LLC	073H	MOJAVE	CA
2017-03-14	661-238-4XXX	4000–4999	Assigned	TELNYX LLC	073H	TEHACHAPI	CA
2017-03-14	661-416-3XXX	3000–3999	Assigned	TELNYX LLC	073H	ARVIN	CA
2017-03-14	661-527-8XXX	8000–8999	Assigned	TELNYX LLC	073H	BKFD SOUTH	CA
2017-03-14	661-543-3XXX	3000–3999	Assigned	TELNYX LLC	073H	MCFARLAND	CA
2017-03-14	661-553-7XXX	7000–7999	Assigned	TELNYX LLC	073H	DELANO	CA
2017-03-14	661-695-1XXX	1000–1999	Assigned	TELNYX LLC	073H	BKFD NORTH	CA
2017-03-14	661-776-8XXX	8000–8999	Assigned	TELNYX LLC	073H	SHAFTER	CA
2017-03-08	661-553-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	DELANO	CA
2017-03-07	661-543-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	MCFARLAND	CA
2017-03-07	661-564-8XXX	8000–8999	Assigned	BHN IP ENABLED SERVICES, LLC	045L	BKFD SOUTH	CA
2017-02-23	661-239-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	WALKERBSIN	CA
2017-02-23	661-258-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	EDWARDS	CA
2017-02-22	661-314-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2017-02-22	661-314-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2017-02-17	661-404-4XXX	4000–4999	Assigned	BHN IP ENABLED SERVICES, LLC	045L	BKFD MAIN	CA
2017-02-07	661-494-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LANCASTER	CA
2017-02-07	661-535-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BKFD NORTH	CA
2017-02-07	661-564-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BKFD SOUTH	CA
2017-01-30	661-491-3XXX	3000–3999	Assigned	BHN IP ENABLED SERVICES, LLC	045L	BKFD SOUTH	CA
2017-01-27	661-289-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	LEBEC	CA
2017-01-18	661-403-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	PLDL PLDL	CA
2017-01-13	661-630-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SHAFTER	CA
2017-01-05	661-314-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2017-01-05	661-314-3XXX	3000–3999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2016-12-16	661-404-1XXX	1000–1999	Assigned	TELNYX LLC	073H	BKFD MAIN	CA
2016-12-15	661-314-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2016-12-15	661-314-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2016-12-15	661-869-0XXX	0000–0999	Assigned	METROPCS, INC.	5562	BKFD MAIN	CA
2016-12-07	661-593-2XXX	2000–2999	Assigned	METROPCS NETWORKS, LLC	899D	SNCA NHCS	CA
2016-12-06	661-293-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	TAFT	CA
2016-12-06	661-372-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	DELANO	CA
2016-12-06	661-494-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LANCASTER	CA
2016-12-06	661-553-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	DELANO	CA
2016-12-06	661-592-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNCA SGCC	CA
2016-11-30	661-593-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SNCA NHCS	CA
2016-11-28	661-227-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	PLDL PLDL	CA
2016-11-28	661-227-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	PLDL PLDL	CA
2016-11-28	661-227-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	PLDL PLDL	CA
2016-11-21	661-479-0XXX	0000–0999	Assigned	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	BKFD MAIN	CA
2016-11-14	661-314-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	BKFD MAIN	CA
2016-11-14	661-314-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	BKFD MAIN	CA
2016-11-14	661-314-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	BKFD MAIN	CA
2016-11-11	661-416-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	ARVIN	CA
2016-11-11	661-416-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	ARVIN	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.