Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
—	337-580	6XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	EUNICE	LA
—	337-581	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	CROWLEY	LA
—	337-582	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	IOWA	LA
—	337-583	not yet reported which blocks →	CAMERON TEL CO	0425	CARLYSS	LA
—	337-584	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	ELTON	LA
—	337-585	1XXX3XXX4XXX5XXX8XXX · 4 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	PORT BARRE	LA
—	337-587	3XXX8XXX · 2 holders which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	THORNWELL	LA
—	337-588	7XXX8XXX · 2 holders which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	LACASSINE	LA
—	337-589	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	VINTON	LA
—	337-592	1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	KROTZ SPG	LA
—	337-593	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	LAFAYETTE	LA
—	337-594	0XXX2XXX4XXX6XXX7XXX9XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	OPELOUSAS	LA
—	337-596	not yet reported which blocks →	SPOK, INC.	6630	LK CHARLES	LA
—	337-598	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	SWEET LAKE	LA
—	337-599	8XXX which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	PINEPRAIRI	LA
—	337-606	1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	NEW IBERIA	LA
—	337-608	8XXX9XXX which blocks →	PAETEC ITEL, LLC	829J	NEW IBERIA	LA
—	337-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	LA
—	337-616	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	JENNINGS	LA
—	337-622	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	HAYES	LA
—	337-623	1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MELVILLE	LA
—	337-625	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	SULPHUR	LA
—	337-626	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	SULPHUR	LA
—	337-639	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	OBERLIN	LA
—	337-642	not yet reported which blocks →	KAPLAN TEL. CO.	0432	FORKED IS	LA
—	337-643	not yet reported which blocks →	KAPLAN TEL. CO.	0432	KAPLAN	LA
—	337-652	not yet reported which blocks →	KAPLAN TEL. CO.	0432	KAPLAN	LA
—	337-653	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	LEESVILLE	LA
—	337-654	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LAFAYETTE	LA
—	337-656	0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	LK CHARLES	LA
—	337-658	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA	6505	LAFAYETTE	LA
—	337-660	0XXX2XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LK CHARLES	LA
—	337-661	6XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LK CHARLES	LA
—	337-662	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	SUNSET	LA
—	337-666	4XXX6XXX7XXX · 3 holders which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	REEVES	LA
—	337-667	not yet reported which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	CECELIA	LA
—	337-668	8XXX which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	CANKTON	LA
—	337-684	8XXX which blocks →	BRIGHTSPEED OF LOUISIANA, LLC	0434	CHURCH PT	LA
—	337-685	not yet reported which blocks →	DELCAMBRE TEL. CO.	0428	DELCAMBRE	LA
—	337-692	6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	OPELOUSAS	LA
—	337-693	none assigned yet which blocks →	VOICESTREAM GSM I, LLC	150C	LAFAYETTE	LA
—	337-700	not yet reported which blocks →				LA
—	337-704	1XXX2XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	LAFAYETTE	LA
—	337-706	0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	LAFAYETTE	LA
—	337-708	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	LK CHARLES	LA
—	337-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	LA
—	337-713	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	LAFAYETTE	LA
—	337-714	8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	BROUSSARD	LA
—	337-717	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	CROWLEY	LA
—	337-718	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	PAETEC ITEL, LLC	829J	LEESVILLE	LA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.