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
2020-08-19	307-302-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - WY	081F	CODY	WY
2020-08-13	307-372-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - WY	081F	DOUGLAS	WY
2020-08-11	307-372-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2020-08-11	307-372-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	DOUGLAS	WY
2020-08-11	307-407-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	WSPEARFISH	WY
2020-08-11	307-407-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	WSPEARFISH	WY
2020-08-06	307-226-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	AFTON	WY
2020-08-06	307-227-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	MAMMOTH	WY
2020-08-06	307-227-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	MAMMOTH	WY
2020-08-06	307-228-7XXX	7000–7999	Assigned	ONVOY, LLC - WY	450F	GILLETTE	WY
2020-08-06	307-284-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	JACKSON	WY
2020-08-06	307-284-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	JACKSON	WY
2020-08-06	307-300-4XXX	4000–4999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2020-08-06	307-300-5XXX	5000–5999	Assigned	ONVOY, LLC - WY	450F	POWELL	WY
2020-08-06	307-313-2XXX	2000–2999	Assigned	ONVOY, LLC - WY	450F	EVANSTON	WY
2020-08-06	307-323-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2020-08-06	307-323-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2020-08-06	307-336-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	DANIEL	WY
2020-08-06	307-364-3XXX	3000–3999	Assigned	ONVOY, LLC - WY	450F	GREENRIVER	WY
2020-08-06	307-456-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	BIG PINEY	WY
2020-08-06	307-460-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2020-08-06	307-761-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	LARAMIE	WY
2020-08-04	307-204-6XXX	6000–6999	Assigned	ONVOY, LLC - WY	450F	CODY	WY
2020-08-04	307-204-9XXX	9000–9999	Assigned	ONVOY, LLC - WY	450F	CODY	WY
2020-08-03	307-288-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	EVANSTON	WY
2020-08-03	307-364-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	GREENRIVER	WY
2020-07-30	307-300-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	POWELL	WY
2020-07-30	307-355-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	LA GRANGE	WY
2020-07-30	307-481-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	LUSK	WY
2020-07-30	307-800-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	KEMMERER	WY
2020-07-30	307-881-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	WHEATLAND	WY
2020-07-29	307-226-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	AFTON	WY
2020-07-29	307-364-9XXX	9000–9999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	GREENRIVER	WY
2020-07-29	307-624-8XXX	8000–8999	Assigned	TELEPORT COMMUNICATIONS AMERICA WY-LLC	879G	DOUGLAS	WY
2020-07-28	307-409-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	LA GRANGE	WY
2020-07-28	307-409-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	LA GRANGE	WY
2020-07-28	307-409-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	LA GRANGE	WY
2020-07-28	307-409-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	LA GRANGE	WY
2020-07-27	307-487-1XXX	1000–1999	Assigned	AIRUS, INC. - WY	581H	GILLETTE	WY
2020-07-14	307-218-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - WY	081F	SHERIDAN	WY
2020-07-14	307-285-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - WY	081F	BUFFALO	WY
2020-07-09	307-323-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	PINEDALE	WY
2020-06-18	307-292-9XXX	9000–9999	Assigned	HD CARRIER LLC	321J	CHEYENNE	WY
2020-06-16	307-310-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	CHEYENNE	WY
2020-06-16	307-310-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	CHEYENNE	WY
2020-06-11	307-900-0XXX	0000–0999	Assigned	FRACTEL, LLC	965H	GLENDO	WY
2020-06-11	307-900-9XXX	9000–9999	Assigned	FRACTEL, LLC	965H	GLENDO	WY
2020-06-04	307-218-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	SHERIDAN	WY
2020-06-04	307-487-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WY	9416	GILLETTE	WY
2020-05-26	307-249-9XXX	9000–9999	Assigned	AIRUS, INC. - WY	581H	JACKSON	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.