Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

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
2020-06-01	530-977	0XXX1XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	FRACTEL, LLC	965H	AUBN NORTH	CA
2020-06-01	626-686	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	EL MONTE	CA
2020-06-01	626-842	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	ALHAMBRA	CA
2020-06-01	626-885	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	COVINA	CA
2020-06-01	626-946	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	AZUSA	CA
2020-06-01	626-995	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	PSDN PSDN	CA
2020-06-01	626-998	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	LA PUENTE	CA
2020-06-01	657-577	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	FULLERTON	CA
2020-06-01	657-588	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	BREA	CA
2020-06-01	657-655	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	SANTA ANA	CA
2020-06-01	657-677	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	ORANGE	CA
2020-06-01	657-688	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	PLACENTIA	CA
2020-06-01	661-844	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	PLDL PLDL	CA
2020-06-01	681-296	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	MULLENS	WV
2020-06-01	681-801	0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC - WV	449F	FAIRVIEW	WV
2020-05-29	205-974	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ALABASTER	AL
2020-05-29	206-558	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - WA	483E	BAINBDG IS	WA
2020-05-29	206-589	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - WA	483E	RICHMNDBCH	WA
2020-05-29	365-930	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Ancaster	—
2020-05-29	365-931	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Caledonia	—
2020-05-29	365-932	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Binbrook	—
2020-05-29	365-934	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Dundas	—
2020-05-29	442-356	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	VTVL HSPR	CA
2020-05-29	442-422	1XXX2XXX7XXX · 3 holders which blocks →	FRACTEL, LLC	965H	SHOSHONE	CA
2020-05-29	442-477	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	RIDGECREST	CA
2020-05-29	442-577	0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	PAUMA VLY	CA
2020-05-29	442-677	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	PALMDESERT	CA
2020-05-29	442-758	0XXX3XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	OLANCHA	CA
2020-05-29	442-766	0XXX2XXX3XXX5XXX6XXX7XXX · 5 holders which blocks →	FRACTEL, LLC	965H	INYOKERN	CA
2020-05-29	442-788	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	DSERTHTSPG	CA
2020-05-29	442-842	1XXX4XXX5XXX · 3 holders which blocks →	FRACTEL, LLC	965H	INDEPNDNCE	CA
2020-05-29	442-877	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	ESCONDIDO	CA
2020-05-29	442-946	0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 5 holders which blocks →	FRACTEL, LLC	965H	EARP LSLK	CA
2020-05-29	504-499	0–9 XXXall 10 · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	NEWORLEANS	LA
2020-05-29	505-376	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	ESPANOLA	NM
2020-05-29	551-501	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	ENGLEWOOD	NJ
2020-05-29	585-551	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	478J	ROCHESTER	NY
2020-05-29	603-600	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	MANCHESTER	NH
2020-05-29	848-294	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	KEYPORT	NJ
2020-05-29	848-305	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	BOUNDBROOK	NJ
2020-05-29	848-847	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	KEANSBURG	NJ
2020-05-29	848-850	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	EMILLSTONE	NJ
2020-05-29	848-895	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - NJ	637C	MANASQUAN	NJ
2020-05-29	857-365	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	478J	BOSTON	MA
2020-05-28	209-685	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	STOCKTON	CA
2020-05-28	216-616	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OH	464C	TERRACE	OH
2020-05-28	224-328	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC	224C	WINNETKA	IL
2020-05-28	224-344	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC	224C	WILMETTE	IL
2020-05-28	228-338	0–9 XXXall 10 · 3 holders which blocks →	HD CARRIER LLC	321J	BILOXI	MS
2020-05-28	229-264	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	THOMASVL	GA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.