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
— 727-786 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-787 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-789 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-790 not yet reported which blocks → SPOK, INC. 6630 CLEARWATER FL
— 727-791 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-793 1XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-796 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-797 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-798 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEARWATER FL
— 727-799 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 CLEARWATER FL
— 727-803 6XXX which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 STPETERSBG FL
— 727-804 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
— 727-807 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 NWPTRICHEY FL
— 727-808 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NWPTRICHEY FL
— 727-809 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 NWPTRICHEY FL
— 727-810 2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 NWPTRICHEY FL
— 727-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 727-812 not yet reported which blocks → MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 CLEARWATER FL
— 727-813 not yet reported which blocks → FL
— 727-815 2XXX5XXX6XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-816 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-817 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-819 4XXX6XXX7XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-820 1XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-821 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-822 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-823 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-824 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-825 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-826 0XXX7XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-827 2XXX7XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 STPETERSBG FL
— 727-828 6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J STPETERSBG FL
— 727-834 0XXX1XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-835 5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NWPTRICHEY FL
— 727-836 none assigned yet which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-838 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-841 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-842 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-843 1XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-844 8XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-845 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-846 none assigned yet which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-847 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-848 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-849 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 NWPTRICHEY FL
— 727-850 not yet reported which blocks → FL
— 727-851 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 STPETERSBG FL
— 727-853 4XXX5XXX6XXX8XXX · 3 holders which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 NWPTRICHEY FL
— 727-856 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON FL
— 727-857 3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 HUDSON 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.