Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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

ONVOY, LLC - CA 26

NEW CINGULAR WIRELESS PCS, LLC - IL 26

Rogers Communications Canada Inc. (Wireless) 23

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
2021-09-24	365-564	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Palgrave	—
2021-09-24	365-568	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Queensville	—
2021-09-24	365-569	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Richmond Hill	—
2021-09-24	365-570	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Schomberg	—
2021-09-24	365-571	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Stouffville	—
2021-09-24	365-572	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Sutton	—
2021-09-24	365-573	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Thornhill	—
2021-09-24	365-574	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Unionville	—
2021-09-24	365-587	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Uxbridge	—
2021-09-24	365-596	not yet reported which blocks →	TekSavvy Solutions Inc	548H	Woodbridge	—
2021-09-24	424-461	0–9 XXXall 10 · 6 holders which blocks →	COMMIO, LLC	939H	LOMITA	CA
2021-09-24	424-977	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	W ANGELES	CA
2021-09-24	435-312	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	HALCHITA	UT
2021-09-24	435-320	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MNZMCRANTH	UT
2021-09-24	442-402	0–9 XXXall 10 · 3 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	PALM SPG	CA
2021-09-24	470-853	0–9 XXXall 10 · 8 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	SOCIALCRCL	GA
2021-09-24	502-284	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	GEORGETOWN	KY
2021-09-24	502-351	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	CARROLLTON	KY
2021-09-24	520-587	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PORTAL	AZ
2021-09-24	539-351	8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CLAYTON	OK
2021-09-24	559-990	0–9 XXXall 10 · 5 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	SANGER	CA
2021-09-24	562-575	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	ALAMITOS	CA
2021-09-24	580-604	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	RUFE	OK
2021-09-24	582-322	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	METROPCS, INC.	5562	HUNTINGDON	PA
2021-09-24	585-578	0XXX1XXX6XXX · 3 holders which blocks →	COMMIO, LLC	939H	CASTILE	NY
2021-09-24	605-805	2XXX8XXX9XXX · 3 holders which blocks →	METROPCS, INC.	5562	PIERRE	SD
2021-09-24	626-591	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	COVINA	CA
2021-09-24	657-525	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	FULLERTON	CA
2021-09-24	659-242	0–9 XXXall 10 · 6 holders which blocks →	COMMIO, LLC	939H	ALABASTER	AL
2021-09-24	720-817	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	STRASBURG	CO
2021-09-24	762-346	0XXX1XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	CORETEL GEORGIA, INC. - GA	052G	FRANKLIN	GA
2021-09-24	762-578	0–9 XXXall 10 · 6 holders which blocks →	CORETEL GEORGIA, INC. - GA	052G	CALHOUN	GA
2021-09-24	762-782	0–9 XXXall 10 · 5 holders which blocks →	CORETEL GEORGIA, INC. - GA	052G	HEPHZIBAH	GA
2021-09-24	781-868	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	WEYMOUTH	MA
2021-09-24	805-818	0–9 XXXall 10 · 3 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	SANBARBARA	CA
2021-09-24	845-966	0XXX1XXX3XXX4XXX6XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	CIRCLEVL	NY
2021-09-24	857-388	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	SOMERVILLE	MA
2021-09-24	858-544	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	RNCHOBRNDO	CA
2021-09-24	873-619	not yet reported which blocks →	Cooptel	818D	St-Cyrille	—
2021-09-24	916-982	0–9 XXXall 10 · 5 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	SCRM MAIN	CA
2021-09-24	925-492	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	PITTSBURG	CA
2021-09-24	928-456	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	FLAGSTAFF	AZ
2021-09-24	945-223	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CARROLLTON	TX
2021-09-24	951-622	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	MIRA LOMA	CA
2021-09-24	951-889	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	TEMECULA	CA
2021-09-24	986-250	7XXX which blocks →	CAMBRIDGE TELEPHONE COMPANY	2215	CAMBRIDGE	ID
2021-09-23	207-719	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	SANFORD	ME
2021-09-23	207-995	0XXX1XXX which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	OLDORCHBCH	ME
2021-09-23	224-429	0–9 XXXall 10 · 3 holders which blocks →	COMMIO, LLC	939H	GRAYSLAKE	IL
2021-09-23	231-454	0XXX2XXX3XXX4XXX9XXX · 2 holders which blocks →	METROPCS, INC.	5562	TRAVERSECY	MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.