863
Area code

FL

United States geographic area code, in service since 1999-09-20.

Split from 941.

Statusin service
Introduced1999-09-20
JurisdictionFL, US
Local dialing7D
Time zoneEastern
Last verified2026-09-17
Utilization 63.4% of assignable prefixes assigned As of 09/17/2026
0%502 of ~792 assignable NXX values (200–999 excl. N11)100%

Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-02-06, most recent 2026-07-07.

Area codes serve rate-center geographies, not municipal boundaries. “FL” identifies the jurisdiction, not an exact city footprint.

Top assignees

Ranked by assigned prefixes · initial assignee ≠ current carrier
Largest initial assignees in area code 863
RankAssigneePrefixesShare
01 FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 78 15.5%
02 CENTURYLINK OF FLORIDA, INC. (UNITED) 46 9.2%
03 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 45 9%
04 NEW CINGULAR WIRELESS PCS, LLC - GA 36 7.2%
05 AERIAL COMMUNICATIONS, INC. 31 6.2%
06 ONVOY, LLC - FL 25 5%
07 22 4.4%
08 PAETEC ITEL, LLC 21 4.2%
09 METROPCS NETWORKS, LLC 18 3.6%
10 METROPCS, INC. 17 3.4%

Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.

Change history

Recorded events for this NPA
  • 1999-09-20Area code 863 entered service (created from 941).

Planning letters & orders

Primary documents
NANPA planning letters for area code 863
DateDocumentSubject
1999-07-19 PL-180 ↗ Geographic Split of 941 (Florida) Numbering Plan Area (NPA); addition of 863 NPA

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