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 334
SOUTHERN COMMUNICATIONS SERVICES, INC. 27
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
2008-11-19 334-454 0–9 XXXall 10 · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 NOTASULGA AL
2008-11-19 334-471 0–9 XXXall 10 · 5 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PINE HILL AL
2008-11-18 334-463 0–9 XXXall 10 · 6 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 ALBERTA AL
2008-07-07 334-457 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 CLIO AL
2006-07-05 334-660 0XXX1XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 ARITON AL
2003-10-30 334-422 0–9 XXXall 10 · 6 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 LINDEN AL
2003-09-11 334-438 1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 THOMASTON AL
2003-04-25 334-504 6XXX7XXX8XXX9XXX · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 ANDALUSIA AL
2003-04-25 334-525 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 GREENVILLE 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
2002-07-31 334-828 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 DOTHAN 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
2002-04-10 334-380 0–9 XXXall 10 · 7 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PRATTVILLE AL
2002-04-10 334-581 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 UNIONTOWN AL
— 334-381 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-426 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-520 0XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-534 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-560 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-606 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-608 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 PHENIXCITY AL
— 334-697 0–9 XXXall 10 · 7 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 TROY AL
— 334-726 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 DOTHAN AL
— 334-850 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 MONTGOMERY 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.