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 401

ONVOY, LLC - RI 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
2026-09-17	401-549	0XXX which blocks →	ONVOY, LLC - RI	977E	PROVIDENCE	RI
2026-03-27	401-758	0–9 XXXall 10 · 3 holders which blocks →	AHOI LLC	883K	PROVIDENCE	RI
2026-02-20	401-547	7XXX which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	CENTREDALE	RI
2026-02-09	401-571	0–9 XXXall 10 · 4 holders which blocks →	WAVENATION, LLC	700J	PROVIDENCE	RI
2025-12-08	401-546	0XXX1XXX6XXX7XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PAWTUCKET	RI
2025-10-13	401-591	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI	6389	PROVIDENCE	RI
2025-10-02	401-570	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PROVIDENCE	RI
2025-08-19	401-540	4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2025-07-01	401-557	0XXX1XXX5XXX6XXX7XXX · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7351	GREENWICH	RI
2025-06-11	401-538	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2025-01-09	401-476	0XXX1XXX2XXX9XXX · 2 holders which blocks →	ONVOY, LLC - RI	977E	CENTREDALE	RI
2024-12-02	401-998	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PAWTUCKET	RI
2024-07-30	401-299	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2024-07-25	401-201	0–9 XXXall 10 · 4 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	PROVIDENCE	RI
2024-03-06	401-530	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	PROVIDENCE	RI
2024-02-21	401-469	0XXX1XXX · 2 holders which blocks →	ONVOY, LLC - RI	977E	PASCOAG	RI
2024-01-10	401-492	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2024-01-09	401-449	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI	6389	PROVIDENCE	RI
2023-12-15	401-446	0XXX1XXX2XXX5XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - RI	977E	NARRAGNSTT	RI
2023-12-15	401-448	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - RI	977E	PAWTUCKET	RI
2023-05-05	401-445	0–9 XXXall 10 · 5 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	PROVIDENCE	RI
2023-04-03	401-990	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	W WARWICK	RI
2023-03-02	401-436	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	732J	PAWTUCKET	RI
2022-11-30	401-422	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PAWTUCKET	RI
2022-01-31	401-587	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SCITUATE	RI
2022-01-27	401-416	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2021-12-15	401-395	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	HD CARRIER LLC	321J	CENTREDALE	RI
2021-12-03	401-394	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PASCOAG	RI
2021-09-29	401-382	0–9 XXXall 10 · 5 holders which blocks →	IP HORIZON LLC	515J	PROVIDENCE	RI
2021-09-03	401-389	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PAWTUCKET	RI
2021-08-11	401-376	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2021-07-20	401-373	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - RI	977E	CENTREDALE	RI
2021-07-01	401-362	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PAWTUCKET	RI
2021-05-25	401-361	0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	WARWICK	RI
2021-04-20	401-746	2XXX3XXX4XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CAROLINA	RI
2021-04-08	401-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - RI	977E	PROVIDENCE	RI
2021-03-26	401-358	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - RI	003F	PASCOAG	RI
2021-02-08	401-306	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	CUMBLND HL	RI
2020-10-19	401-895	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	PROVIDENCE	RI
2020-07-24	401-355	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	CENTREDALE	RI
2020-07-24	401-955	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	PAWTUCKET	RI
2020-03-31	401-296	0–9 XXXall 10 · 6 holders which blocks →	INTRADO COMMUNICATIONS, LLC	836C	PROVIDENCE	RI
2020-02-19	401-291	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	PROVIDENCE	RI
2019-09-23	401-208	0–9 XXXall 10 · 3 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	PROVIDENCE	RI
2019-07-08	401-328	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	PROVIDENCE	RI
2018-12-19	401-205	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	PAWTUCKET	RI
2018-12-18	401-799	0–9 XXXall 10 · 5 holders which blocks →	HD CARRIER LLC	321J	PROVIDENCE	RI
2018-12-18	401-900	0–9 XXXall 10 · 4 holders which blocks →	TERRA NOVA TELECOM INC.	145J	PROVIDENCE	RI
2018-06-13	401-600	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PROVIDENCE	RI
2017-12-28	401-260	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7351	CENTREDALE	RI

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.