Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 307

UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 20

ONVOY, LLC - WY 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
2023-09-29	307-410-1XXX	1000–1999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2023-09-29	307-410-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2023-09-29	307-624-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2023-09-29	307-666-0XXX	0000–0999	Assigned	ONVOY, LLC - WY	450F	CHEYENNE	WY
2023-09-29	307-990-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	LANDER	WY
2023-09-29	307-990-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	LANDER	WY
2023-09-13	307-295-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	TORRINGTON	WY
2023-09-12	307-293-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	GUERNSEY	WY
2023-09-12	307-294-0XXX	0000–0999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	BIG PINEY	WY
2023-09-12	307-333-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-09-12	307-336-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	DANIEL	WY
2023-09-12	307-355-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	LA GRANGE	WY
2023-09-12	307-374-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	ROCK SPG	WY
2023-09-12	307-387-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	GILLETTE	WY
2023-09-12	307-416-0XXX	0000–0999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2023-09-12	307-481-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	LUSK	WY
2023-09-01	307-533-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	SHERIDAN	WY
2023-08-25	307-408-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	LYMAN	WY
2023-08-24	307-394-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY	6566	CASPER	WY
2023-08-17	307-396-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	GREENRIVER	WY
2023-08-17	307-419-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	CODY	WY
2023-08-15	307-243-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	CASPER	WY
2023-08-11	307-410-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY	6566	POWELL	WY
2023-08-10	307-423-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY	6566	BUFFALO	WY
2023-08-01	307-294-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	BIG PINEY	WY
2023-07-28	307-203-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	JACKSON	WY
2023-07-19	307-463-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	RIVERTON	WY
2023-07-13	307-289-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	CHEYENNE	WY
2023-07-13	307-441-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-441-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-441-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-1XXX	1000–1999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-458-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2023-07-13	307-556-1XXX	1000–1999	Assigned	ONVOY, LLC - WY	450F	RIVERTON	WY
2023-07-13	307-556-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	RIVERTON	WY
2023-07-13	307-556-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	RIVERTON	WY
2023-07-13	307-556-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	RIVERTON	WY
2023-07-12	307-227-7XXX	7000–7999	Assigned	TERRA NOVA TELECOM INC.	145J	MAMMOTH	WY
2023-06-26	307-289-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY	6566	CHEYENNE	WY
2023-06-23	307-289-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	CHEYENNE	WY
2023-06-23	307-306-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2023-06-23	307-374-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	ROCK SPG	WY
2023-06-23	307-393-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	EVANSTON	WY
2023-06-23	307-395-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2023-06-23	307-410-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.