Recent thousands-block assignments

9 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 909

ONVOY, LLC - CA 6

PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2

BANDWIDTH.COM CLEC, LLC - 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
2017-03-15	909-775-3XXX	3000–3999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2017-03-14	909-515-5XXX	5000–5999	Assigned	TELNYX LLC	073H	S BERNDINO	CA
2017-03-14	909-775-1XXX	1000–1999	Assigned	TELNYX LLC	073H	FONTANA	CA
2017-03-13	909-768-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	CALIMESA	CA
2017-03-09	909-530-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	ARROWHEAD	CA
2017-03-09	909-530-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	ARROWHEAD	CA
2017-03-08	909-602-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	REDLANDS	CA
2017-03-08	909-738-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	ONTARIO	CA
2017-03-07	909-288-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	CLAREMONT	CA
2017-03-03	909-442-3XXX	3000–3999	Assigned	METROPCS NETWORKS, LLC	899D	RIALTO	CA
2017-02-22	909-878-6XXX	6000–6999	Assigned	METROPCS, INC.	5562	BIGBEAR LK	CA
2017-02-17	909-479-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	CHINO	CA
2017-02-17	909-755-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	UPLAND	CA
2017-02-10	909-738-9XXX	9000–9999	Assigned	METROPCS NETWORKS, LLC	899D	ONTARIO	CA
2017-02-01	909-354-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	ONTARIO	CA
2017-01-31	909-843-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	ONTARIO	CA
2017-01-27	909-530-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	ARROWHEAD	CA
2017-01-18	909-761-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	S BERNDINO	CA
2017-01-13	909-765-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	MARSHALL	CA
2017-01-12	909-755-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	UPLAND	CA
2017-01-11	909-497-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	CHINO	CA
2017-01-11	909-737-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	HIGHLAND	CA
2017-01-10	909-479-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	CHINO	CA
2017-01-10	909-688-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	FONTANA	CA
2017-01-09	909-506-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	CLAREMONT	CA
2017-01-09	909-775-0XXX	0000–0999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2017-01-09	909-775-8XXX	8000–8999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2017-01-09	909-775-9XXX	9000–9999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2017-01-05	909-688-4XXX	4000–4999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2017-01-03	909-755-5XXX	5000–5999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	UPLAND	CA
2016-12-22	909-321-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ONTARIO	CA
2016-12-22	909-497-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CHINO	CA
2016-12-22	909-506-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	CLAREMONT	CA
2016-12-19	909-688-3XXX	3000–3999	Assigned	METROPCS NETWORKS, LLC	899D	FONTANA	CA
2016-12-13	909-588-1XXX	1000–1999	Assigned	ONVOY, LLC - CA	649C	MENTONE	CA
2016-12-13	909-588-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	MENTONE	CA
2016-12-13	909-602-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	REDLANDS	CA
2016-12-12	909-372-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	CALIMESA	CA
2016-12-09	909-316-8XXX	8000–8999	Assigned	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	CALIMESA	CA
2016-12-07	909-442-2XXX	2000–2999	Assigned	METROPCS NETWORKS, LLC	899D	RIALTO	CA
2016-12-07	909-688-2XXX	2000–2999	Assigned	AT&T ENTERPRISES, LLC	516C	FONTANA	CA
2016-11-29	909-751-3XXX	3000–3999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	S BERNDINO	CA
2016-11-28	909-442-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	RIALTO	CA
2016-11-28	909-679-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	COLTON	CA
2016-11-28	909-688-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	FONTANA	CA
2016-11-28	909-760-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	DIAMONDBAR	CA
2016-11-24	909-679-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	COLTON	CA
2016-11-22	909-479-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	CHINO	CA
2016-11-22	909-479-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	CHINO	CA
2016-11-22	909-506-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	CLAREMONT	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.