Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days — NPA 719

8X8, INC. 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 NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2020-12-30	719-665	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - CO	026D	LAKEGEORGE	CO
2020-12-16	719-601	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CO	026D	PUEBLO	CO
2020-12-15	719-402	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - CO	026D	COLORDOSPG	CO
2020-11-10	719-934	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PUEBLO	CO
2020-10-22	719-895	0–9 XXXall 10 · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	COLORDOSPG	CO
2020-09-11	719-370	0–9 XXXall 10 · 7 holders which blocks →	NUSO, LLC	478J	COLORDOSPG	CO
2020-09-02	719-653	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	COLORDOSPG	CO
2020-09-02	719-664	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PUEBLO	CO
2020-08-26	719-936	0–9 XXXall 10 · 6 holders which blocks →	N.E. COLORADO CELLULAR, INC.	6874	ALAMOSA	CO
2020-08-18	719-517	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	COLORDOSPG	CO
2020-08-11	719-508	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PEYTON	CO
2020-07-29	719-507	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	PUEBLO	CO
2020-07-22	719-504	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PUEBLO	CO
2020-07-01	719-501	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	PUEBLO	CO
2020-05-11	719-509	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - CO	026D	TRINIDAD	CO
2020-03-27	719-319	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	ONVOY, LLC - CO	026D	CREEDE	CO
2020-01-09	719-307	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PUEBLO	CO
2020-01-09	719-420	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	PUEBLO	CO
2019-11-14	719-759	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - CO	026D	CENTER	CO
2019-10-21	719-506	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PUEBLO	CO
2019-10-07	719-516	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	COLORDOSPG	CO
2019-08-28	719-467	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	PUEBLO	CO
2019-08-26	719-463	0–9 XXXall 10 · 5 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	COLORDOSPG	CO
2019-08-16	719-416	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - CO	026D	BRANSON	CO
2019-08-16	719-437	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CO	026D	PEYTON	CO
2019-08-16	719-515	3XXX4XXX5XXX7XXX9XXX · 4 holders which blocks →	ONVOY, LLC - CO	026D	LA JARA	CO
2019-05-30	719-413	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	COLORDOSPG	CO
2019-04-09	719-435	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	BUENAVISTA	CO
2019-02-25	719-500	0–9 XXXall 10 · 6 holders which blocks →	TERRA NOVA TELECOM INC.	145J	COLORDOSPG	CO
2019-01-25	719-300	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	COLORDOSPG	CO
2019-01-17	719-820	0–9 XXXall 10 · 4 holders which blocks →	HD CARRIER LLC	321J	COLORDOSPG	CO
2018-12-13	719-490	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MONTEVISTA	CO
2018-09-26	719-401	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	PEYTON	CO
2018-09-12	719-642	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	CRIPPLECRK	CO
2018-09-11	719-789	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	CALHAN	CO
2018-05-15	719-881	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	FAIRPLAY	CO
2018-04-24	719-922	0–9 XXXall 10 · 3 holders which blocks →	INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO	5972	COLORDOSPG	CO
2018-04-23	719-851	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	SALIDA	CO
2018-04-10	719-716	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CO	026D	PUEBLO	CO
2017-12-20	719-755	0–9 XXXall 10 · 8 holders which blocks →	VONAGE AMERICA LLC	197D	COLORDOSPG	CO
2017-10-04	719-259	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - CO	026D	COLORDOSPG	CO
2017-08-31	719-666	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CO	026D	COLORDOSPG	CO
2017-08-24	719-257	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	COLORDOSPG	CO
2017-08-01	719-341	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	ALAMOSA	CO
2017-08-01	719-733	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CO	6118	PUEBLO	CO
2017-06-30	719-675	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	COLORDOSPG	CO
2017-03-24	719-619	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	COLORDOSPG	CO
2017-01-06	719-726	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	COLORDOSPG	CO
2016-12-09	719-374	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	COLORDOSPG	CO
2016-09-06	719-627	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	COLORDOSPG	CO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.