Recent thousands-block assignments

21 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 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
2021-02-02	307-785-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	WBLLFOURCH	WY
2021-02-02	307-888-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	OLDFATHFUL	WY
2021-02-02	307-888-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	OLDFATHFUL	WY
2021-02-02	307-900-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	GLENDO	WY
2021-02-02	307-900-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	GLENDO	WY
2021-02-02	307-999-1XXX	1000–1999	Assigned	ONVOY, LLC - WY	450F	MORAN	WY
2021-02-02	307-999-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	MORAN	WY
2021-01-20	307-318-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - WY	081F	WRIGHT	WY
2020-12-31	307-205-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	LINGLE	WY
2020-12-31	307-338-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	TORRINGTON	WY
2020-12-31	307-355-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	LA GRANGE	WY
2020-12-31	307-757-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	CHEYENNE	WY
2020-12-31	307-788-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	WEST LYMAN	WY
2020-12-21	307-306-1XXX	1000–1999	Assigned	STRATUS NETWORKS	495J	DOUGLAS	WY
2020-11-19	307-218-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	SHERIDAN	WY
2020-11-19	307-218-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	SHERIDAN	WY
2020-11-19	307-225-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2020-11-19	307-225-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2020-11-19	307-225-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2020-11-19	307-226-1XXX	1000–1999	Assigned	ONVOY, LLC - WY	450F	AFTON	WY
2020-11-19	307-243-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2020-11-19	307-243-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	CASPER	WY
2020-11-19	307-285-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	BUFFALO	WY
2020-11-19	307-285-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	BUFFALO	WY
2020-11-19	307-285-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	BUFFALO	WY
2020-11-19	307-300-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2020-11-19	307-300-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2020-11-19	307-302-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	CODY	WY
2020-11-19	307-302-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	CODY	WY
2020-11-19	307-303-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	GREENRIVER	WY
2020-11-19	307-313-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	EVANSTON	WY
2020-11-19	307-323-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2020-11-19	307-323-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2020-11-19	307-336-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	DANIEL	WY
2020-11-19	307-336-6XXX	6000–6999	Assigned	NUSO, LLC	732J	DANIEL	WY
2020-11-19	307-370-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	RAWLINS	WY
2020-11-19	307-372-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2020-11-19	307-372-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2020-11-19	307-456-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	BIG PINEY	WY
2020-11-19	307-456-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	BIG PINEY	WY
2020-11-19	307-475-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	CHEYENNE	WY
2020-11-19	307-475-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	CHEYENNE	WY
2020-11-19	307-475-8XXX	8000–8999	Assigned	ONVOY, LLC - WY	450F	CHEYENNE	WY
2020-11-19	307-481-0XXX	0000–0999	Assigned	ONVOY, LLC - WY	450F	LUSK	WY
2020-11-19	307-487-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	GILLETTE	WY
2020-11-19	307-487-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	GILLETTE	WY
2020-11-19	307-488-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	LANDER	WY
2020-11-19	307-522-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	ROCK SPG	WY
2020-11-19	307-554-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	GLENROCK	WY
2020-11-19	307-554-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	GLENROCK	WY

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.