Recent thousands-block assignments

1 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 415

BOOST SUBSCRIBERCO L.L.C. 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
2021-11-29	415-537-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	SNFC CNTRL	CA
2021-07-14	415-704-9XXX	9000–9999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-07	415-727-9XXX	9000–9999	Assigned	TELNYX LLC	073H	INVERNESS	CA
2021-07-01	415-907-0XXX	0000–0999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-1XXX	1000–1999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-8XXX	8000–8999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-07-01	415-907-9XXX	9000–9999	Assigned	ONVOY, LLC - CA	649C	SNFC JUNPR	CA
2021-04-26	415-639-6XXX	6000–6999	Assigned	ONVOY SPECTRUM, LLC	624H	INVERNESS	CA
2021-04-26	415-639-8XXX	8000–8999	Assigned	ONVOY SPECTRUM, LLC	624H	INVERNESS	CA
2021-04-07	415-729-6XXX	6000–6999	Assigned	IP HORIZON LLC	515J	SAUSALITO	CA
2021-04-07	415-843-3XXX	3000–3999	Assigned	TERRA NOVA TELECOM INC.	145J	MILLVALLEY	CA
2021-04-07	415-873-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	POINTREYES	CA
2021-03-17	415-800-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNFC CNTRL	CA
2021-03-17	415-839-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNFC CNTRL	CA
2021-03-17	415-839-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNFC CNTRL	CA
2021-03-17	415-962-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SNFC CNTRL	CA
2021-02-22	415-605-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-22	415-605-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2021-02-11	415-605-0XXX	0000–0999	Assigned	SONIC TELECOM, LLC - CA	433E	SNFC CNTRL	CA
2021-01-30	415-639-0XXX	0000–0999	Assigned	TELNYX LLC	073H	INVERNESS	CA
2021-01-27	415-324-2XXX	2000–2999	Assigned	TELNYX LLC	073H	SAUSALITO	CA
2021-01-27	415-598-3XXX	3000–3999	Assigned	TELNYX LLC	073H	NICASIO	CA
2021-01-27	415-723-8XXX	8000–8999	Assigned	TELNYX LLC	073H	POINTREYES	CA
2021-01-27	415-881-6XXX	6000–6999	Assigned	TELNYX LLC	073H	IGNACIO	CA
2020-12-10	415-726-6XXX	6000–6999	Assigned	TERRA NOVA TELECOM INC.	145J	SAN RAFAEL	CA
2020-12-10	415-839-3XXX	3000–3999	Assigned	TERRA NOVA TELECOM INC.	145J	SNFC CNTRL	CA
2020-11-25	415-605-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	SNFC CNTRL	CA
2020-11-16	415-462-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SAN RAFAEL	CA
2020-11-16	415-462-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SAN RAFAEL	CA
2020-11-06	415-639-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	INVERNESS	CA
2020-11-06	415-639-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	INVERNESS	CA
2020-09-20	415-261-9XXX	9000–9999	Assigned	COMCAST PHONE OF CALIFORNIA, LLC	394L	SAN RAFAEL	CA
2020-08-28	415-874-0XXX	0000–0999	Assigned	ONVOY, LLC - CA	649C	SNFC CNTRL	CA
2020-07-31	415-704-2XXX	2000–2999	Assigned	TWILIO INTERNATIONAL, INC.	506J	SNFC JUNPR	CA
2020-06-17	415-651-0XXX	0000–0999	Assigned	ONVOY SPECTRUM, LLC	624H	SNFC CNTRL	CA
2020-06-17	415-651-6XXX	6000–6999	Assigned	ONVOY SPECTRUM, LLC	624H	SNFC CNTRL	CA
2020-06-17	415-707-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	SNFC CNTRL	CA
2020-05-11	415-797-3XXX	3000–3999	Assigned	ONVOY SPECTRUM, LLC	624H	BELVEDERE	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.