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 214
SPOK, INC. 31
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
— 214-246 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-248 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-322 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-344 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-359 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-362 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-401 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-439 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-510 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-512 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-588 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-595 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-737 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-759 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-781 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-786 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-798 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-804 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-822 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-825 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-832 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-834 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-835 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-847 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-848 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-852 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-877 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-895 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-913 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-992 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX
— 214-993 not yet reported which blocks → SPOK, INC. 6630 GRANDPRARI TX

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.