Recent prefix assignments

2 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 838

ONVOY, LLC- NY 1

NEW CINGULAR WIRELESS PCS, LLC - DC 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
2021-01-06	838-835	1XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	CHATEAUGAY	NY
2021-01-06	838-836	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC- NY	384C	CATSKILL	NY
2021-01-04	838-383	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC- NY	384C	AMSTERDAM	NY
2021-01-04	838-600	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC- NY	384C	HOOSICKFLS	NY
2021-01-04	838-833	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC- NY	384C	SOBETHLEHM	NY
2020-12-31	838-388	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BERNE	NY
2020-12-31	838-883	0XXX1XXX3XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CASTLETON	NY
2020-12-21	838-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC- NY	384C	ALBANY	NY
2020-12-07	838-877	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC- NY	384C	HUDSON	NY
2020-12-03	838-229	0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks →	PEERING HUB, INC. - NY	818H	ARGYLE	NY
2020-12-03	838-400	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	FRACTEL, LLC	965H	ROUND LAKE	NY
2020-11-12	838-227	0–9 XXXall 10 · 7 holders which blocks →	HD CARRIER LLC	321J	CENTRALBDG	NY
2020-10-23	838-226	0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	TC SYSTEMS, INC. - NY	7140	KEESEVILLE	NY
2020-09-28	838-221	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	ALBANY	NY
2020-09-08	838-218	0–9 XXXall 10 · 2 holders which blocks →	IP HORIZON LLC	515J	ALBANY	NY
2020-08-14	838-895	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	ALBANY	NY
2020-07-21	838-481	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	WESTELCOM NETWORK, INC. - NY	1227	MALONE	NY
2020-07-17	838-217	0–9 XXXall 10 · 5 holders which blocks →	PEERING HUB, INC. - NY	818H	ALBANY	NY
2020-05-28	838-204	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC- NY	384C	HAMPTON	NY
2019-11-05	838-212	not yet reported which blocks →	RIGHT CALL LLC	365J	ALBANY	NY
2019-11-05	838-214	not yet reported which blocks →	RIGHT CALL LLC	365J	AMSTERDAM	NY
2019-11-05	838-215	not yet reported which blocks →	RIGHT CALL LLC	365J	CATSKILL	NY
2019-11-05	838-220	not yet reported which blocks →	RIGHT CALL LLC	365J	COLONIE	NY
2019-11-05	838-225	not yet reported which blocks →	RIGHT CALL LLC	365J	HUDSON	NY
2019-11-05	838-230	not yet reported which blocks →	RIGHT CALL LLC	365J	MIDDLEBG	NY
2019-11-05	838-238	not yet reported which blocks →	RIGHT CALL LLC	365J	ROTERDMJCT	NY
2019-11-05	838-338	not yet reported which blocks →	RIGHT CALL LLC	365J	SCHENCTADY	NY
2019-11-05	838-538	not yet reported which blocks →	RIGHT CALL LLC	365J	TROY	NY
2019-06-13	838-210	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	MILLERTON	NY
2019-05-28	838-219	0XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	KINDERHOOK	NY
2019-04-02	838-209	0XXX1XXX2XXX8XXX9XXX · 3 holders which blocks →	VALSTAR, INC. - NY	9073	CLAVERACK	NY
2019-03-22	838-900	0–9 XXXall 10 · 5 holders which blocks →	TERRA NOVA TELECOM INC.	145J	ALBANY	NY
2019-03-19	838-208	0XXX2XXX9XXX · 2 holders which blocks →	CSC WIRELESS, LLC	425J	COPAKE	NY
2019-02-21	838-207	0–9 XXXall 10 · 4 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	ALBANY	NY
2019-02-15	838-206	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC- NY	384C	CLAVERACK	NY
2019-02-15	838-500	0XXX2XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	ROUND LAKE	NY
2019-02-15	838-766	2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	WARRENSBG	NY
2019-02-14	838-224	1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	WELLS	NY
2019-02-14	838-228	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	WINDHAM	NY
2019-02-14	838-256	0XXX1XXX2XXX4XXX6XXX7XXX8XXX · 3 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	LKPLEASANT	NY
2019-02-14	838-282	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	LYON MT	NY
2019-02-14	838-336	0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	PALENVILLE	NY
2019-02-14	838-384	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	CASTLETON	NY
2019-02-14	838-386	0–9 XXXall 10 · 4 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	TROY	NY
2019-02-14	838-435	0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	CLAVERACK	NY
2019-02-14	838-438	0–9 XXXall 10 · 6 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	SALEM	NY
2019-02-14	838-468	1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	WHITEHALL	NY
2019-02-14	838-529	0XXX2XXX3XXX9XXX · 3 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	FONDA	NY
2019-02-14	838-639	0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	DELANSON	NY
2019-02-14	838-697	6XXX8XXX · 2 holders which blocks →	CORETEL NEW YORK, INC. - NY	1215	BROADALBIN	NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.