Indiana area codes — detailed data

NANPA NPA database, current as of July 28, 2026.

This page expands the state overview with per-code operational data from NANPA: parent codes, projected exhaust dates, dialing patterns and relief status for all 8 Indiana codes.

Aggregate footprint: the state's 8 geographic codes currently carry 3,951 active NXX prefixes over 646 rate-center anchorings, with 3,009 prefixes in thousands-block pooling. 8 of the codes serve territory inside FCC top-100 metropolitan statistical areas.

Lineage: 260 came out of 219 in 2002; 463 came out of 317 in 2016; 574 came out of 219 in 2002; 765 came out of 317 in 1997; 930 came out of 812 in 2015. The remaining codes (219, 317, 812) date back to the plan's early assignments.

Dialing plans: 6 codes use plain ten-digit local dialing (10D); 2 still allow seven-digit local calls. Overlay territories always dial ten digits; the 2021 988-hotline transition moved most others to ten digits as well.

The tightest capacity in the state is 765, projected to exhaust 1Q 2032.

Status: no Indiana code is currently in jeopardy or active relief planning — capacity is adequate near-term per NANPA.

Code-by-code notes

317 — spawned 765, 463; overlaid by 463; exhaust forecast 2Q 2058.

812 — spawned 930; overlaid by 930; exhaust forecast 1Q 2073; spans two time zones.

765 — carved from 317; exhaust forecast 1Q 2032.

219 — spawned 260, 574; exhaust forecast 1Q 2047; spans two time zones.

260 — carved from 219; exhaust forecast 1Q 2075.

574 — carved from 219; exhaust forecast 1Q 2093; spans two time zones.

463 — carved from 317; overlaid by 317; exhaust forecast 2Q 2058.

930 — carved from 812; overlaid by 812; exhaust forecast 1Q 2073.

Time-zone note: 219, 574, 812 span two time zones — rare among NANP codes.