North Carolina area codes — detailed data
Working detail for North Carolina's 10 area codes: history, capacity forecasts and dialing plans, straight from NANPA's NPA database.
Aggregate footprint: the state's 10 geographic codes currently carry 5,501 active NXX prefixes over 633 rate-center anchorings, with 4,077 prefixes in thousands-block pooling. 9 of the codes serve territory inside FCC top-100 metropolitan statistical areas.
Lineage: 252 came out of 919 in 1998; 336 came out of 910 in 1997; 472 came out of 910 in 2022; 743 came out of 336 in 2016; 828 came out of 704 in 1998; 910 came out of 919 in 1993; 980 came out of 704 in 2001; 984 came out of 919 in 2012. The remaining codes (704, 919) date back to the plan's early assignments.
Dialing plans: 8 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 828, projected to exhaust 2Q 2029.
Status: 1 with relief planning in progress — details in the table.
Code-by-code notes
336 — spawned 743; carved from 910; overlaid by 743; exhaust forecast 2Q 2071.
910 — spawned 336, 472; carved from 919; overlaid by 472; exhaust forecast 4Q 2050.
704 — spawned 828, 980; overlaid by 980; exhaust forecast 3Q 2038.
919 — spawned 910, 252, 984; overlaid by 984; exhaust forecast 1Q 2047.
828 — carved from 704; exhaust forecast 2Q 2029.
252 — carved from 919; exhaust forecast 1Q 2031.
980 — carved from 704; overlaid by 704; exhaust forecast 3Q 2038.
984 — carved from 919; overlaid by 919; exhaust forecast 1Q 2047.
743 — carved from 336; overlaid by 336; exhaust forecast 2Q 2071.
472 — carved from 910; overlaid by 910; exhaust forecast 4Q 2050.
| Code | In service | Split from | Exhaust (NANPA) | Local dialing | Status |
|---|---|---|---|---|---|
| 252 | 1998-03-22 | 919 | 1Q 2031 | 7D | Normal |
| 336 | 1997-12-15 | 910 | 2Q 2071 | 10D | Normal |
| 472 | 2022-10-07 | 910 | 4Q 2050 | 10D | Normal |
| 704 | 1947-01-01 | — | 3Q 2038 | 10D | Normal |
| 743 | 2016-05-23 | 336 | 2Q 2071 | 10D | Normal |
| 828 | 1998-03-22 | 704 | 2Q 2029 | 7D | Relief planning |
| 910 | 1993-11-14 | 919 | 4Q 2050 | 10D | Normal |
| 919 | 1954-01-01 | — | 1Q 2047 | 10D | Normal |
| 980 | 2001-04-01 | 704 | 3Q 2038 | 10D | Normal |
| 984 | 2012-04-30 | 919 | 1Q 2047 | 10D | Normal |