NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 808-967 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-968 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-969 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-971 1XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-973 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-974 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX HI
— 808-979 1XXX4XXX5XXX6XXX · 2 holders which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-981 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-982 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-983 9XXX which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-984 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-985 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HILO HI
— 808-986 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 WAILUKU HI
— 808-987 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI 6516 HILO HI
— 808-988 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 808-989 not yet reported which blocks → T-MOBILE USA, INC. 6529 HILO HI
— 808-990 not yet reported which blocks → T-MOBILE USA, INC. 6529 HILO HI
— 808-996 not yet reported which blocks → HAWAIIAN TELCOM, INC. - HI 3100 HONOLULU HI
— 810-203 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 APPLEGATE MI
— 810-205 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 PORT HURON MI
— 810-209 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J BYRON MI
— 810-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MI
— 810-213 2XXX3XXX5XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 FLINT MI
— 810-217 8XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTHFIELD MI
— 810-220 9XXX which blocks → MICHIGAN BELL TEL CO 9323 BRIGHTON MI
— 810-222 3XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 BRIGHTON MI
— 810-223 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FLINT MI
— 810-224 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 BRIGHTON MI
— 810-225 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BRIGHTON MI
— 810-227 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BRIGHTON MI
— 810-229 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 BRIGHTON MI
— 810-230 4XXX which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-231 5XXX which blocks → MICHIGAN BELL TEL CO 9323 BRIGHTON MI
— 810-232 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-233 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-234 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-235 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-236 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-237 0XXX1XXX9XXX · 2 holders which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-238 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-239 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-240 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
— 810-241 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI
— 810-244 not yet reported which blocks → PAETEC ITEL, LLC 829J FLINT MI
— 810-245 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 LAPEER MI
— 810-249 not yet reported which blocks → PAETEC ITEL, LLC 829J FLINT MI
— 810-250 1XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-251 not yet reported which blocks → MICHIGAN BELL TEL CO 9323 FLINT MI
— 810-252 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 FLINT MI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.