Recent thousands-block assignments

24 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 530

ONVOY, LLC - CA 9

BANDWIDTH.COM CLEC, LLC - CA 6

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 4

OPENTACT INC. 3

T-MOBILE USA, INC. 2

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
2011-10-27	530-800-0XXX	0000–0999	Assigned	ONVOY, LLC - CA	649C	CHICO	CA
2011-10-12	530-419-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	WOODLAND	CA
2011-10-12	530-601-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	DAVIS	CA
2011-10-12	530-868-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	BIGGS	CA
2011-10-04	530-568-3XXX	3000–3999	Assigned	UTILITY TELECOM GROUP, LLC - CA	9262	MT SHASTA	CA
2011-10-04	530-937-5XXX	5000–5999	Assigned	UTILITY TELECOM GROUP, LLC - CA	9262	YREKA	CA
2011-09-20	530-777-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	MARYSVILLE	CA
2011-09-16	530-402-5XXX	5000–5999	Assigned	METROPCS, INC.	5562	WOODLAND	CA
2011-09-14	530-288-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	CAMPTONVL	CA
2011-09-14	530-292-2XXX	2000–2999	Assigned	AT&T ENTERPRISES, LLC	516C	NOSAN JUAN	CA
2011-09-14	530-334-9XXX	9000–9999	Assigned	AT&T ENTERPRISES, LLC	516C	GEORGETOWN	CA
2011-09-14	530-639-6XXX	6000–6999	Assigned	AT&T ENTERPRISES, LLC	516C	SMARTSVL	CA
2011-09-14	530-655-3XXX	3000–3999	Assigned	AT&T ENTERPRISES, LLC	516C	NICOLAUS	CA
2011-09-14	530-797-2XXX	2000–2999	Assigned	AT&T ENTERPRISES, LLC	516C	GRIDLEY	CA
2011-09-14	530-862-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	DOWNIEVL	CA
2011-09-13	530-777-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	MARYSVILLE	CA
2011-09-08	530-389-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	ALTA	CA
2011-09-08	530-563-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	TRUCKEE	CA
2011-09-08	530-564-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	DAVIS	CA
2011-09-08	530-683-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	SHINGLESPG	CA
2011-09-08	530-777-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	MARYSVILLE	CA
2011-09-08	530-802-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	GRVY MAIN	CA
2011-09-02	530-592-3XXX	3000–3999	Assigned	COMCAST PHONE OF CALIFORNIA, LLC	394L	CHICO	CA
2011-09-01	530-999-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	REDDING	CA
2011-08-31	530-777-3XXX	3000–3999	Assigned	COMCAST PHONE OF CALIFORNIA, LLC	394L	MARYSVILLE	CA
2011-08-22	530-999-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7145	REDDING	CA
2011-08-16	530-795-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	WINTERS	CA
2011-08-15	530-687-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	NEVADACITY	CA
2011-08-15	530-718-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	AUBN MAIN	CA
2011-08-15	530-802-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	GRVY MAIN	CA
2011-08-11	530-479-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	VERDI	CA
2011-08-11	530-762-0XXX	0000–0999	Assigned	COMCAST PHONE OF CALIFORNIA, LLC	394L	PARADISE	CA
2011-08-09	530-353-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	OROVILLE	CA
2011-08-05	530-387-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SHINGLESPG	CA
2011-08-05	530-643-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	YREKA	CA
2011-08-05	530-883-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	AUBN MAIN	CA
2011-08-03	530-418-3XXX	3000–3999	Assigned	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	NORTH YUBA	CA
2011-08-03	530-652-2XXX	2000–2999	Assigned	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	GRVY SOUTH	CA
2011-08-02	530-349-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	COLFAX	CA
2011-08-02	530-739-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	WEAVERVL	CA
2011-08-02	530-830-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	AUBN NORTH	CA
2011-07-28	530-298-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	DAVIS	CA
2011-07-28	530-735-8XXX	8000–8999	Assigned	ONVOY, LLC - CA	649C	KNIGHTSLDG	CA
2011-07-28	530-762-7XXX	7000–7999	Assigned	AT&T ENTERPRISES, LLC	516C	PARADISE	CA
2011-07-26	530-235-7XXX	7000–7999	Assigned	AT&T ENTERPRISES, LLC	516C	DUNSMUIR	CA
2011-07-26	530-394-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	QUINCY	CA
2011-07-26	530-459-9XXX	9000–9999	Assigned	AT&T ENTERPRISES, LLC	516C	MONTAGUE	CA
2011-07-26	530-576-3XXX	3000–3999	Assigned	AT&T ENTERPRISES, LLC	516C	LOSMOLINOS	CA
2011-07-26	530-732-8XXX	8000–8999	Assigned	AT&T ENTERPRISES, LLC	516C	GERBER	CA
2011-07-26	530-861-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	VINA	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.