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 863
FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 78
CENTURYLINK OF FLORIDA, INC. (UNITED) 46
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 45
NEW CINGULAR WIRELESS PCS, LLC - GA 36
AERIAL COMMUNICATIONS, 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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 863-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST FL
— 863-557 none assigned yet which blocks → METROPCS NETWORKS, LLC 899D HAINESCITY FL
— 863-558 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
— 863-559 none assigned yet which blocks → METROPCS NETWORKS, LLC 899D LAKELAND FL
— 863-561 not yet reported which blocks → FL
— 863-570 not yet reported which blocks → SPOK, INC. 6630 LAKELAND FL
— 863-576 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 POLK CITY FL
— 863-577 9XXX which blocks → PAETEC ITEL, LLC 829J LAKELAND FL
— 863-578 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 BARTOW FL
— 863-581 8XXX which blocks → METROPCS NETWORKS, LLC 899D LAKELAND FL
— 863-582 1XXX2XXX5XXX6XXX8XXX · 4 holders which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 BARTOW FL
— 863-583 2XXX4XXX5XXX6XXX · 4 holders which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 LAKELAND FL
— 863-585 0XXX1XXX2XXX7XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 WINTER HVN FL
— 863-589 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 LAKE WALES FL
— 863-595 3XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WINTER HVN FL
— 863-599 3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLEWISTON FL
— 863-602 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKELAND FL
— 863-603 3XXX8XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-604 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTER HVN FL
— 863-605 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKE WALES FL
— 863-606 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-607 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-608 6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 LAKELAND FL
— 863-609 not yet reported which blocks → SPOK, INC. 6630 LAKELAND FL
— 863-610 6XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OKEECHOBEE FL
— 863-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX FL
— 863-612 5XXX6XXX7XXX8XXX which blocks → CENTURYLINK OF FLORIDA, INC. (UNITED) 0341 LABELLE FL
— 863-614 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-616 3XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-617 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 LAKELAND FL
— 863-618 5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 WINTER HVN FL
— 863-619 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-632 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 LAKE WALES FL
— 863-634 none assigned yet which blocks → METROPCS, INC. 5562 OKEECHOBEE FL
— 863-635 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 FROSTPROOF FL
— 863-638 5XXX6XXX8XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKE WALES FL
— 863-640 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 LAKELAND FL
— 863-644 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-646 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-647 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-648 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-651 0XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 WINTER HVN FL
— 863-655 not yet reported which blocks → CENTURYLINK OF FLORIDA, INC. (UNITED) 0341 LAKEPLACID FL
— 863-660 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKELAND FL
— 863-665 not yet reported which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-666 0XXX4XXX7XXX · 2 holders which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-667 6XXX8XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-668 1XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-669 3XXX5XXX6XXX7XXX8XXX which blocks → FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 0328 LAKELAND FL
— 863-670 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKELAND 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.