NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 601
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 242
NEW CINGULAR WIRELESS PCS, LLC - GA 80
TELEPAK NETWORKS, INC. - MS 75
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 74
LEVEL 3 COMMUNICATIONS, LLC - MS 67
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
2002-02-07 601-562 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PHILA MS
2002-01-09 601-538 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 LIBERTY MS
2002-01-09 601-622 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2001-12-11 601-393 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MONTICELLO MS
2001-12-11 601-533 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J BOLTON MS
2001-12-11 601-615 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MONTICELLO MS
2001-11-08 601-526 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J RAYMOND MS
2001-11-08 601-534 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 VICKSBURG MS
2001-11-08 601-569 5XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PICAYUNE MS
2001-11-08 601-934 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MERIDIAN MS
2001-10-09 601-229 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 PICAYUNE MS
2001-10-09 601-343 0XXX3XXX · 2 holders which blocks → TERRA NOVA TELECOM INC. 145J HEIDELBERG MS
2001-09-04 601-515 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 BROOKHAVEN MS
2001-07-31 601-531 0–9 XXXall 10 · 6 holders which blocks → AIRUS, INC. - MS 459H MERIDIAN MS
2001-07-02 601-272 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J VICKSBURG MS
2001-07-02 601-492 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 NATCHEZ MS
2001-05-30 601-488 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 CLINTON MS
2001-05-30 601-512 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MERIDIAN MS
2001-05-03 601-310 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HATTIESBG MS
2001-05-03 601-341 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MCCOMB MS
2001-05-03 601-467 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HATTIESBG MS
2001-05-03 601-468 4XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 WAYNESBORO MS
2001-05-03 601-472 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 GLOSTER MS
2001-05-03 601-475 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 HATTIESBG MS
2001-05-03 601-669 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROOKHAVEN MS
2001-05-03 601-695 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROOKHAVEN MS
2001-05-03 601-807 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NATCHEZ MS
2001-05-03 601-810 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MCCOMB MS
2001-04-17 601-465 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MCCOMB MS
2001-03-27 601-504 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PHILA MS
2001-03-26 601-487 3XXX6XXX8XXX · 2 holders which blocks → TELEPAK NETWORKS, INC. - MS 5278 JACKSON MS
2001-02-28 601-383 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 JACKSON MS
2001-02-28 601-448 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PORTGIBSON MS
2001-02-28 601-455 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MONTICELLO MS
2001-02-28 601-464 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PURVIS MS
2001-02-28 601-473 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 CLINTON MS
2001-01-31 601-390 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAUREL MS
2001-01-31 601-418 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E MCLAIN MS
2001-01-31 601-451 4XXX5XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 FAYETTE MS
2001-01-31 601-453 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MERIDIAN MS
2001-01-04 601-392 0XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 NATCHEZ MS
2001-01-04 601-398 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2001-01-03 601-382 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MAGEE MS
— 601-200 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-201 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
— 601-206 0XXX2XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-207 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MS 719E MERIDIAN MS
— 601-208 0XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-209 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
— 601-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.