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 326

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
2026-09-16	326-880	1XXX which blocks →	8X8, INC.	193E	DAYTON	OH
2026-05-07	326-247	0XXX1XXX9XXX which blocks →	ONVOY, LLC - OH	464C	ENGLEWOOD	OH
2026-04-14	326-246	0XXX1XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - OH	464C	NEWCARLISL	OH
2026-02-19	326-244	0XXX which blocks →	ONVOY, LLC - OH	464C	SIDNEY	OH
2026-01-28	326-245	0XXX1XXX which blocks →	ONVOY, LLC - OH	464C	MARYSVILLE	OH
2025-12-31	326-243	0XXX1XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FRANKLIN	OH
2025-12-11	326-242	0XXX2XXX · 2 holders which blocks →	ONVOY, LLC - OH	464C	MOUNT ORAB	OH
2025-11-24	326-241	0XXX1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks →	ONVOY, LLC - OH	464C	MSBGWCRLTN	OH
2025-09-09	326-240	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	MARYSVILLE	OH
2025-07-25	326-239	0–9 XXXall 10 · 5 holders which blocks →	WAVENATION, LLC	700J	DAYTON	OH
2025-03-10	326-238	0XXX1XXX7XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	URBANA	OH
2024-10-23	326-237	5XXX which blocks →	WADDELL SOLUTIONS GROUP LLC	742J	WILMINGTON	OH
2024-10-16	326-235	0–9 XXXall 10 · 4 holders which blocks →	LEAP TELECOM, LLC	616J	DAYTON	OH
2024-08-08	326-233	0XXX1XXX3XXX8XXX9XXX · 4 holders which blocks →	AT&T - LOCAL	7421	HILLSBORO	OH
2024-07-05	326-232	1XXX which blocks →	FIRST COMMUNICATIONS, LLC	460K	FAIRBORN	OH
2024-06-14	326-231	0XXX2XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - OH	464C	SPRINGFLD	OH
2024-04-29	326-221	0XXX7XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BELFAST	OH
2024-04-29	326-223	0XXX8XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CENTERVLLE	OH
2024-04-29	326-224	0XXX1XXX7XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	DANVILLE	OH
2024-04-29	326-225	0XXX1XXX5XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	GRATIS	OH
2024-04-29	326-226	0XXX4XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	RAINSBORO	OH
2024-04-29	326-228	0XXX2XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SO VIENNA	OH
2024-04-29	326-229	0XXX7XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SOCHARLETN	OH
2024-04-29	326-230	0XXX1XXX2XXX3XXX7XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	YLSPGCLFTN	OH
2024-04-18	326-220	0–9 XXXall 10 · 5 holders which blocks →	CALLWORKS CORPORATION	475J	DAYTON	OH
2024-03-05	326-205	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	SPRINGFLD	OH
2024-03-05	326-219	0XXX1XXX2XXX · 2 holders which blocks →	COMMIO, LLC	939H	TROTWOOD	OH
2024-02-29	326-218	0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	VANDALIA	OH
2024-01-05	326-217	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OH	464C	ENGLEWOOD	OH
2023-09-20	326-216	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPRINGFLD	OH
2023-08-17	326-215	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - OH	464C	BEAVERCREK	OH
2023-07-06	326-214	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - OH	464C	FRANKLIN	OH
2023-03-14	326-213	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	DAYTON	OH
2023-03-07	326-212	0–9 XXXall 10 · 3 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	DAYTON	OH
2023-02-22	326-209	0–9 XXXall 10 · 3 holders which blocks →	AT&T - LOCAL	7421	NEWCARLISL	OH
2022-12-15	326-867	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	TROTWOOD	OH
2022-10-28	326-208	1XXX2XXX3XXX4XXX7XXX · 2 holders which blocks →	NUSO, LLC	732J	LIBERTY	OH
2022-10-14	326-207	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	DAYTON	OH
2022-06-15	326-953	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	PIQUA	OH
2022-06-09	326-206	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	SIDNEY	OH
2022-01-24	326-227	2XXX3XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	FLTCHELENA	OH
2022-01-13	326-426	0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MOWRYSTOWN	OH
2022-01-06	326-685	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	FAIRBORN	OH
2021-12-22	326-827	0XXX9XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	LIBERTY	OH
2021-12-21	326-435	0–9 XXXwhole prefix which blocks →	TON80 COMMUNICATIONS, LLC	516J	DAYTON	OH
2021-12-10	326-204	0–9 XXXall 10 · 5 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	DAYTON	OH
2021-08-24	326-299	0XXX2XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MECHANCSBG	OH
2021-07-07	326-202	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DAYTON	OH
2021-06-15	326-688	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	BEAVERCREK	OH
2021-06-15	326-699	0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	BROOKVILLE	OH

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.