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
2002-10-14	228-239	0XXX1XXX2XXX3XXX4XXX5XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BILOXI	MS
2002-09-19	228-261	6XXX9XXX · 2 holders which blocks →	METROPCS, INC.	5562	GULFPORT	MS
2002-09-06	228-235	not yet reported which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	OCEAN SPG	MS
2002-07-16	228-220	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	BAYSTLOUIS	MS
2002-07-16	228-222	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PASSCHRSTN	MS
2002-04-29	228-273	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 TELECOM OF MISSISSIPPI, LLC - MS	220C	BILOXI	MS
2002-04-29	228-284	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	GULFPORT	MS
2002-04-29	228-447	0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	OCEAN SPG	MS
2002-04-29	228-471	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PASCAGOULA	MS
2002-04-29	228-671	none assigned yet which blocks →	METROPCS, INC.	5562	BAYSTLOUIS	MS
2002-04-03	228-229	0XXX1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BILOXI	MS
2002-03-04	228-591	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	VANCLEAVE	MS
2002-02-25	228-249	none assigned yet which blocks →	METROPCS, INC.	5562	PASCAGOULA	MS
2001-10-02	228-283	0–9 XXXall 10 · 8 holders which blocks →	AT&T ENTERPRISES, LLC	516C	VANCLEAVE	MS
2001-09-25	228-245	not yet reported which blocks →	PAETEC ITEL, LLC	829J	PASSCHRSTN	MS
2001-09-07	228-246	not yet reported which blocks →	PAETEC ITEL, LLC	829J	MOSS POINT	MS
2001-08-27	228-201	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	PASCAGOULA	MS
2001-05-24	228-232	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	BILOXI	MS
2001-05-24	228-241	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	GULFPORT	MS
2001-05-24	228-242	not yet reported which blocks →	TELEPAK NETWORKS, INC. - MS	5278	BAYSTLOUIS	MS
2001-05-10	228-244	not yet reported which blocks →	PAETEC ITEL, LLC	829J	OCEAN SPG	MS
2001-05-08	228-452	1XXX8XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	PASSCHRSTN	MS
2001-05-02	228-236	0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	GULFPORT	MS
2001-03-28	228-819	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	OCEAN SPG	MS
2001-03-20	228-424	none assigned yet which blocks →	METROPCS, INC.	5562	BILOXI	MS
2001-03-08	228-238	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	OCEAN SPG	MS
2001-02-27	228-233	0XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	PAETEC ITEL, LLC	829J	BILOXI	MS
—	228-202	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	PASCAGOULA	MS
—	228-204	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	XXXXXXXXXX	MS
—	228-205	2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	PASCAGOULA	MS
—	228-206	7XXX8XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	GULFPORT	MS
—	228-207	not yet reported which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MS	5178	BILOXI	MS
—	228-208	not yet reported which blocks →	SPOK, INC.	6630	BILOXI	MS
—	228-209	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	BILOXI	MS
—	228-210	not yet reported which blocks →	SPOK, INC.	6630	PASCAGOULA	MS
—	228-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MS
—	228-213	1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	GULFPORT	MS
—	228-214	8XXX which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	GULFPORT	MS
—	228-216	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	BAYSTLOUIS	MS
—	228-217	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	PASCAGOULA	MS
—	228-218	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	PASCAGOULA	MS
—	228-219	not yet reported which blocks →	CELLULAR SOUTH, INC.	6581	PASCAGOULA	MS
—	228-221	not yet reported which blocks →				MS
—	228-228	not yet reported which blocks →				MS
—	228-230	not yet reported which blocks →	PAETEC ITEL, LLC	829J	OCEAN SPG	MS
—	228-243	4XXX5XXX6XXX7XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BILOXI	MS
—	228-251	not yet reported which blocks →				MS
—	228-252	2XXX3XXX4XXX5XXX6XXX8XXX which blocks →	PAETEC ITEL, LLC	829J	BAYSTLOUIS	MS
—	228-255	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	PASSCHRSTN	MS
—	228-263	3XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS	6396	GULFPORT	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.