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 334
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 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
2003-04-08 334-391 none assigned yet which blocks → METROPCS, INC. 5562 MONTGOMERY AL
2003-04-07 334-232 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 EUFAULA AL
2003-04-07 334-234 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 LAFAYETTE AL
2003-03-14 334-436 1XXX2XXX8XXX · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 ROANOKE AL
2003-03-07 334-345 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MARION AL
2003-03-05 334-371 not yet reported which blocks → HAYNEVILLE FIBER TRANSPORT, INC. - AL 753A GREENVILLE AL
2003-03-05 334-404 not yet reported which blocks → HAYNEVILLE FIBER TRANSPORT, INC. - AL 753A FT DEPOSIT AL
2003-02-07 334-435 7XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DOTHAN AL
2003-02-06 334-408 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 PHENIXCITY AL
2003-02-05 334-212 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LINDEN AL
2003-02-05 334-218 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 GREENSBORO AL
2003-02-05 334-231 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 UNIONTOWN AL
2003-02-05 334-258 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SLOCOMB AL
2003-02-05 334-292 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MARION AL
2003-02-05 334-304 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LUVERNE AL
2003-02-05 334-338 3XXX4XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ROANOKE AL
2003-02-05 334-342 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BRANTLEY AL
2003-02-05 334-343 7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ANDALUSIA AL
2003-02-05 334-344 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BRUNDIDGE AL
2003-02-05 334-360 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 GENEVA AL
2003-02-05 334-362 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 GEORGIANA AL
2003-02-05 334-368 3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 GREENVILLE AL
2003-02-05 334-378 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 KINSTON AL
2003-02-03 334-340 not yet reported which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 DOTHAN AL
2002-12-31 334-434 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 TROY AL
2002-12-31 334-439 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → METROPCS, INC. 5562 TUSKEGEE AL
2002-11-27 334-316 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F CLAYTON AL
2002-11-27 334-403 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TROY AL
2002-10-18 334-433 not yet reported which blocks → PAETEC ITEL, LLC 829J ENTERPRISE AL
2002-09-25 334-830 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 THOMASVL AL
2002-09-24 334-210 2XXX3XXX6XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE AL
2002-09-23 334-447 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 ENTERPRISE AL
2002-09-10 334-296 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MONTGOMERY AL
2002-08-16 334-219 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 LAFAYETTE AL
2002-07-31 334-828 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 DOTHAN AL
2002-07-22 334-237 6XXX7XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OZARK AL
2002-07-16 334-375 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 SELMA AL
2002-06-27 334-414 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MONTGOMERY AL
2002-06-20 334-246 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 AUBURN AL
2002-05-21 334-294 0XXX3XXX4XXX5XXX · 2 holders which blocks → METROPCS, INC. 5562 MONTGOMERY AL
2002-05-17 334-276 0XXX1XXX2XXX3XXX4XXX6XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 LAFAYETTE AL
2002-05-08 334-282 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ELBA AL
2002-04-29 334-239 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
2002-04-29 334-275 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 OPELIKA AL
2002-04-22 334-268 4XXX5XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 TROY AL
2002-04-10 334-247 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MARION AL
2002-04-10 334-248 0–9 XXXall 10 · 7 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 GENEVA AL
2002-04-10 334-352 0–9 XXXall 10 · 6 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 GREENSBORO AL
2002-04-10 334-370 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - AL 5255 EUFAULA AL
2002-04-10 334-380 0–9 XXXall 10 · 7 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PRATTVILLE AL

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.