Minnesota area codes — detailed data
Working detail for Minnesota's 8 area codes: history, capacity forecasts and dialing plans, straight from NANPA's NPA database.
Aggregate footprint: the state's 8 geographic codes currently carry 3,745 active NXX prefixes over 639 rate-center anchorings, with 2,374 prefixes in thousands-block pooling. 6 of the codes serve territory inside FCC top-100 metropolitan statistical areas.
Lineage: 320 came out of 612 in 1996; 651 came out of 612 in 1998; 763 came out of 612 in 2000; 924 came out of 507 in 2024; 952 came out of 612 in 2000. The remaining codes (218, 507, 612) date back to the plan's early assignments.
Dialing plans: 4 codes use plain ten-digit local dialing (10D); 4 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 218, projected to exhaust 3Q 2036.
Status: no Minnesota code is currently in jeopardy or active relief planning — capacity is adequate near-term per NANPA.
Code-by-code notes
507 — spawned 924; overlaid by 924.
218 — exhaust forecast 3Q 2036.
612 — spawned 320, 651, 763, 952; exhaust forecast 1Q 2048.
320 — carved from 612; exhaust forecast 2Q 2070.
651 — carved from 612; exhaust forecast 4Q 2100.
763 — carved from 612; exhaust forecast 4Q 2109.
952 — carved from 612.
924 — carved from 507; overlaid by 507.
| Code | In service | Split from | Exhaust (NANPA) | Local dialing | Status |
|---|---|---|---|---|---|
| 218 | 1947-01-01 | — | 3Q 2036 | 10D | Normal |
| 320 | 1996-03-17 | 612 | 2Q 2070 | 7D | Normal |
| 507 | 1954-01-01 | — | — | 10D | Normal |
| 612 | 1947-01-01 | — | 1Q 2048 | 7D | Normal |
| 651 | 1998-07-12 | 612 | 4Q 2100 | 7D | Normal |
| 763 | 2000-02-27 | 612 | 4Q 2109 | 7D | Normal |
| 924 | 2024-08-30 | 507 | — | 10D | Normal |
| 952 | 2000-02-27 | 612 | — | 10D | Normal |