Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 23

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2020-06-01	213-844	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	LSAN DA 09	CA
2020-06-01	279-356	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	FOLSOM	CA
2020-06-01	326-467	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	DAYTON	OH
2020-06-01	365-923	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Grimsby	—
2020-06-01	365-924	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Hagersville	—
2020-06-01	365-925	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Hamilton	—
2020-06-01	365-926	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Mount Hope	—
2020-06-01	365-927	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Stoney Creek	—
2020-06-01	365-928	not yet reported which blocks →	TekSavvy Solutions Inc	548H	West Lincoln	—
2020-06-01	365-929	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Winona	—
2020-06-01	406-506	0–9 XXXall 10 · 4 holders which blocks →	HD CARRIER LLC	321J	BILLINGS	MT
2020-06-01	530-699	0XXX2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	DUNNIGAN	CA
2020-06-01	530-866	0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	COLFAX	CA
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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.