North American Numbers Source-cited · ownership disclosed
Area code
478
In service
United States · since 2000

Central Georgia (Macon)

Split from 912 in the 2000 three-way division of southern Georgia, serving central Georgia around Macon and Warner Robins. It is a stand-alone code with no overlay.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Central Georgia (Macon)
Type
geographic
Status
in service
In service since
2000
Projected exhaust
2044 Q1

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 478 is

Central Georgia — roughly 23 counties (fully or partially) around Macon..

Communities served wholly or partly by 478:

MaconWarner RobinsMilledgevilleDublinPerry
B · Relationships

How it relates to other codes

The codes 478 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Split from · 2000 912 Savannah & coastal Georgia Split from 912 in the 2000-08-01 three-way split (912/229/478).
Related · 2000 229 Southwest Georgia (Albany) Sibling code created in the same 2000 three-way split of 912.
What's changing. Stand-alone code; no overlay as of latest sources.
C · History

How 478 got here

2000-08-01
Created for central Georgia (Macon) in the three-way split of 912. (478 article separately cites an effective date of 2001 — likely dialing timing; 2000-08-01 is the split date per the 912/229 articles.)
Source: Wikipedia
2021-10
Transitioned to ten-digit dialing due to the 988 lifeline designation.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
462
Prefixes available
338
Thousands-blocks assigned
2,172

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 478 with another code →
Sources
Wikipedia ↗
Area code 478
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.