Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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, all time — NPA 228

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 66

NEW CINGULAR WIRELESS PCS, LLC - GA 26

PAETEC ITEL, LLC 25

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 20

ONVOY, LLC - MS 16

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
—	228-264	1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BILOXI	MS
—	228-275	1XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	BILOXI	MS
—	228-276	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BILOXI	MS
—	228-280	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - MS	719E	BILOXI	MS
—	228-281	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	PASCAGOULA	MS
—	228-282	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	OCEAN SPG	MS
—	228-297	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	BILOXI	MS
—	228-304	3XXX5XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BAYSTLOUIS	MS
—	228-305	1XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	PEARLINGTN	MS
—	228-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MS
—	228-312	not yet reported which blocks →	PAETEC ITEL, LLC	829J	PASCAGOULA	MS
—	228-313	not yet reported which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	GULFPORT	MS
—	228-314	0XXX3XXX4XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	GULFPORT	MS
—	228-323	8XXX which blocks →	METROPCS, INC.	5562	GULFPORT	MS
—	228-324	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BILOXI	MS
—	228-326	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BILOXI	MS
—	228-327	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	OCEAN SPG	MS
—	228-328	3XXX5XXX6XXX8XXX · 4 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	GULFPORT	MS
—	228-332	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PASSCHRSTN	MS
—	228-341	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	GULFPORT	MS
—	228-342	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BAYSTLOUIS	MS
—	228-343	none assigned yet which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	GULFPORT	MS
—	228-344	1XXX2XXX3XXX6XXX7XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BAYSTLOUIS	MS
—	228-348	3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks →	METROPCS, INC.	5562	BILOXI	MS
—	228-349	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	PAETEC ITEL, LLC	829J	BILOXI	MS
—	228-354	1XXX2XXX3XXX4XXX5XXX6XXX7XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-357	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	GULFPORT	MS
—	228-363	5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	PASSCHRSTN	MS
—	228-364	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	PASSCHRSTN	MS
—	228-365	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BILOXI	MS
—	228-366	2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	METROPCS, INC.	5562	PASCAGOULA	MS
—	228-367	4XXX5XXX6XXX8XXX9XXX which blocks →	ONVOY, LLC - MS	719E	GULFPORT	MS
—	228-369	2XXX3XXX5XXX6XXX7XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	PASCAGOULA	MS
—	228-372	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PASCAGOULA	MS
—	228-374	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-377	none assigned yet which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	BILOXI	MS
—	228-380	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	GULFPORT	MS
—	228-381	9XXX which blocks →	SOUTHERN COMMUNICATIONS SERVICES, INC.	6744	PASCAGOULA	MS
—	228-382	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	OCEAN SPG	MS
—	228-383	not yet reported which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	GULFPORT	MS
—	228-385	0XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-386	0XXX3XXX6XXX8XXX9XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-388	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-392	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-395	7XXX8XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	BAYSTLOUIS	MS
—	228-396	6XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS
—	228-407	1XXX2XXX3XXX4XXX6XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	PASCAGOULA	MS
—	228-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MS
—	228-422	0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MS	719E	PASCAGOULA	MS
—	228-432	4XXX6XXX9XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	BILOXI	MS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.