NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

2 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, last 30 days — NPA 225
ONVOY, LLC - LA 2
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2004-12-01 225-610 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J BATONROUGE LA
2004-05-17 225-255 0–9 XXXall 10 · 6 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ST GABRIEL LA
2004-02-08 225-208 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2003-12-18 225-395 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SPRINGFLD LA
2003-10-30 225-410 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2003-02-04 225-301 6XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ZACHARY LA
2002-08-19 225-289 0XXX1XXX2XXX3XXX5XXX6XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 DONALDSNVL LA
2002-06-04 225-328 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2002-04-29 225-304 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 DENHAM SPG LA
2002-04-29 225-570 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ZACHARY LA
2002-04-22 225-392 not yet reported which blocks → ADVANCED TEL., INC. - LA 8839 ZACHARY LA
2002-04-18 225-270 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2002-04-10 225-341 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2002-03-14 225-241 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2002-01-24 225-323 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 DONALDSNVL LA
2001-11-16 225-348 0–9 XXXall 10 · 3 holders which blocks → VOICESTREAM GSM I, LLC 150C GONZALES LA
2001-10-30 225-288 not yet reported which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2001-10-23 225-810 0XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2001-09-25 225-286 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ZACHARY LA
2001-09-25 225-314 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ST GABRIEL LA
2001-09-24 225-803 8XXX which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2001-09-17 225-773 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
2001-08-23 225-284 not yet reported which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2001-08-02 225-271 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J DENHAM SPG LA
2001-05-01 225-279 2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2001-03-29 225-278 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2001-03-14 225-253 none assigned yet which blocks → METROPCS, INC. 5562 GONZALES LA
2001-02-05 225-281 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-201 7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
— 225-202 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
— 225-203 not yet reported which blocks → LA
— 225-204 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 XXXXXXXXXX LA
— 225-205 none assigned yet which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
— 225-206 3XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CONVENT LA
— 225-207 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 732J BATONROUGE LA
— 225-209 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ALBANY LA
— 225-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX LA
— 225-212 not yet reported which blocks → SPOK, INC. 6630 BATONROUGE LA
— 225-214 none assigned yet which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 7637 BATONROUGE LA
— 225-215 not yet reported which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 7637 BATONROUGE LA
— 225-216 5XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
— 225-218 3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
— 225-219 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
— 225-221 9XXX which blocks → VOICESTREAM GSM I, LLC 150C BATONROUGE LA
— 225-222 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 GREENSBURG LA
— 225-223 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J BATONROUGE LA
— 225-225 not yet reported which blocks → LA
— 225-226 0XXX2XXX5XXX6XXX8XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
— 225-227 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H BATONROUGE LA
— 225-229 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA

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.