NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 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, last 30 days — NPA 318
ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 1
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
2002-12-30 318-485 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 OAKDALE LA
2002-12-30 318-493 0XXX2XXX3XXX4XXX5XXX8XXX · 6 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 TALLULAH LA
2002-12-19 318-463 0XXX1XXX2XXX6XXX7XXX8XXX9XXX which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OAKDALE LA
2002-12-19 318-482 0XXX which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 TALLULAH LA
2002-12-03 318-436 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 RUSTON LA
2002-12-03 318-527 0XXX3XXX4XXX · 3 holders which blocks → METROPCS, INC. 5562 NATCHITCHS LA
2002-11-26 318-394 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 RUSTON LA
2002-10-18 318-404 0XXX1XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 SHREVEPORT LA
2002-10-07 318-360 not yet reported which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 MONROE LA
2002-09-06 318-224 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 RUSTON LA
2002-08-19 318-302 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 WINNFIELD LA
2002-08-15 318-232 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - LA 2896 RUSTON LA
2002-07-24 318-239 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BASTROP LA
2002-07-24 318-497 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 RUSTON LA
2002-07-24 318-581 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 NATCHITCHS LA
2002-05-20 318-235 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONROE LA
2002-04-29 318-295 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BUNKIE LA
2002-04-29 318-303 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 RAYVILLE LA
2002-04-29 318-402 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SHREVEPORT LA
2002-04-29 318-450 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MONROE LA
2002-04-29 318-461 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 MANSFIELD LA
2002-04-29 318-479 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 FLORIEN LA
2002-04-29 318-480 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 JONESBORO LA
2002-04-29 318-490 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 OAK GROVE LA
2002-04-29 318-491 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 OAKDALE LA
2002-04-29 318-523 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 HOMER LA
2002-04-29 318-542 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ALEXANDRIA LA
2002-04-29 318-608 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - LA 3232 FARMERVL LA
2002-04-19 318-217 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WATERPROOF LA
2002-04-19 318-231 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LKPROVIDNC LA
2002-04-19 318-233 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GEORGETOWN LA
2002-04-19 318-421 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONTEREY LA
2002-04-19 318-531 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SICILY IS LA
2002-04-11 318-294 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA
2002-04-04 318-209 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINNFIELD LA
2002-04-04 318-301 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST JOSEPH LA
2002-03-18 318-237 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONROE LA
2002-03-14 318-286 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA
2002-03-13 318-272 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA
2001-12-19 318-234 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 HOMER LA
2001-12-19 318-236 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 SHREVEPORT LA
2001-12-19 318-238 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 NATCHITCHS LA
2001-12-19 318-270 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 MANSFIELD LA
2001-12-19 318-271 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 COUSHATTA LA
2001-12-19 318-273 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 MANY LA
2001-12-19 318-291 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 MINDEN LA
2001-12-19 318-293 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 SALINE LA
2001-12-19 318-365 not yet reported which blocks → CP-TEL NETWORK SERVICES, INC. - LA 1762 ARCADIA LA
2001-12-12 318-351 2XXX5XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BASTROP LA
2001-11-29 318-367 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 WINNSBORO LA

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.