NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

3 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 727
ONVOY, LLC - FL 2
TELIMIZE, 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
— 727-859 1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-860 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 HUDSON FL
— 727-861 9XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-862 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-863 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-864 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-865 4XXX5XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-866 4XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-867 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-868 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-869 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-871 4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEARWATER FL
— 727-872 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-892 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-893 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-894 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-895 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-896 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-897 5XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-898 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-900 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C CLEARWATER FL
— 727-904 not yet reported which blocks → FL
— 727-906 1XXX2XXX5XXX6XXX7XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 727-914 0–9 XXXall 10 · 4 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L STPETERSBG FL
— 727-916 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TARPON SPG FL
— 727-919 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
— 727-934 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-935 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J TARPON SPG FL
— 727-937 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-938 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-939 5XXX6XXX7XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-940 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TARPON SPG FL
— 727-941 not yet reported which blocks → FL
— 727-942 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-943 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-944 1XXX6XXX8XXX · 3 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-945 2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 TARPON SPG FL
— 727-946 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 TARPON SPG FL
— 727-947 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 TARPON SPG FL
— 727-950 not yet reported which blocks → FL
— 727-953 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → AT&T - LOCAL 7421 CLEARWATER FL
— 727-954 0XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → AT&T - LOCAL 7421 STPETERSBG FL
— 727-956 not yet reported which blocks → SPOK, INC. 6630 NWPTRICHEY FL
— 727-958 not yet reported which blocks → FL
— 727-959 not yet reported which blocks → FL
— 727-967 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 NWPTRICHEY FL
— 727-976 not yet reported which blocks → FL
— 727-988 not yet reported which blocks → FL
— 727-992 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 NWPTRICHEY FL

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.