Kentucky area codes
Kentucky uses 5 area codes, with 1 more assigned but not yet in service. The oldest is 502, in service since 1947; the newest is 364, from 2014. Across them 2,778 of 4,716 possible number blocks are allocated, 58.9% of capacity. 270 is at or past 95%, which is why new numbers there come from overlays rather than the original code. AT&T holds 30.4% of the 2,778 assigned blocks across the state, ahead of Windstream at 12.2%; a further 13.2% sits with CLEC and VoIP holders outside the national carriers. In the 33 days to 30 October 2026, FTC complaints named a Kentucky caller ID 3,817 times – 1.7% of all complaints in the window, most often 502 with 1,703 (4th of 422 nationally). NANPA has relief planning under way for 502 and 761, so more codes are coming. The state spans 2 time zones (Eastern and Central); 270, 364 and 606 cross a zone boundary alone. NANPA records 421 rate centers across the state's codes.
All 6 codes
| Code | In service | Blocks used | Largest holder | Complaints | Shares area with |
|---|---|---|---|---|---|
| 270 | 1999 | 769/786 | AT&T 34.6% | 879 | 364 |
| 364 | 2014 | 72/786 | Other CLEC / VoIP 47.2% | 86 | 270 |
| 502 overlay coming | 1947 | 735/786 | AT&T 42.3% | 1,703 | 761 |
| 606 | 1955 | 639/786 | AT&T 23.8% | 546 | no overlay |
| 761 planned | date not set | 0/786 | – | – | 502 |
| 859 | 2000 | 563/786 | AT&T 20.6% | 603 | no overlay |
Block share is share of allocated number blocks, not of subscribers. Complaint counts cover 28 Sep – 30 Oct 2026 and reflect spoofed caller IDs as much as real calls.
How full Kentucky’s codes are
A code holds at most 786 blocks of 10,000 numbers each. When a code fills up, the administrator does not reclaim numbers – it adds an overlay, and from then on new numbers in the same area come from the new code.
Full or nearly full
761 is in service with no blocks assigned at all, so nobody can hold a number there yet – a caller ID showing one is necessarily spoofed.
Who holds the number blocks
Counted from every assigned block in the state: 2,778 blocks, each with the holder NANPA recorded for it. Percentages are measured, not estimated.
| Holder | Blocks | Share of Kentucky | Largest in |
|---|---|---|---|
| AT&T | 845 | 30.4% | 4 codes |
| Other CLEC / VoIP | 367 | 13.2% | 1 code |
| Windstream | 339 | 12.2% | – |
| Onvoy | 303 | 10.9% | – |
| Verizon | 244 | 8.8% | – |
| T-Mobile | 212 | 7.6% | – |
| Lumen | 205 | 7.4% | – |
| Charter | 116 | 4.2% | – |
| Altafiber | 57 | 2.1% | – |
| Bandwidth | 25 | 0.9% | – |
| Telnyx | 11 | 0.4% | – |
| Spok | 11 | 0.4% | – |
“Other CLEC / VoIP” is not one company: it is every holder outside the national carriers counted together, which is what resellers and app-based numbers look like in the records. This is allocation, not subscribers.
Spam complaints naming Kentucky codes
FTC Do Not Call complaints where the caller ID shown was a Kentucky number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are routinely faked, so these are complaints about the code, not calls proven to come from it.
| Code | Complaints | National rank |
|---|---|---|
| 502 | 1,703 | #4 of 422 |
| 270 | 879 | #70 of 422 |
| 859 | 603 | #171 of 422 |
| 606 | 546 | #195 of 422 |
| 364 | 86 | #380 of 422 |
What people said the calls were about
- Other – 727
- Reducing your debt (credit cards, mortgage, student loans) – 351
- Calls pretending to be government, businesses, or family and friends – 266
- No Subject Provided – 223
Topics as the complainant chose them, for the codes where the FTC published a topic.
What is coming next
One code is assigned to Kentucky but not yet in service. Numbers in them cannot exist yet, so a call displaying one today is spoofed.
NANPA has relief planning open for 502, 761 – the step that comes before a new overlay is announced. Watch these codes if you need to know whether dialing or new-number availability is about to change.
How Kentucky got its codes
1 in the 1940s, 1 in the 1950s, 1 in the 1990s, 1 in the 2000s, 1 in the 2010s. Each code after the first was split off from or overlaid on one already in service.
- 1947 502 goes into service.
- 1955 606 goes into service.
- 1999 270 goes into service, split from or overlaid on 502.
- 2000 859 goes into service, split from or overlaid on 606.
- 2014 364 goes into service, split from or overlaid on 270.
Time zones
Kentucky is in Eastern, Central time. 270, 364, 606 cover more than one zone within a single area code, so the code alone does not tell you what time it is there. This code spans 2 time zones.
Frequently asked about Kentucky area codes
How many area codes does Kentucky have?
5 in service, plus 1 assigned for the future (761). They are 270, 364, 502, 606 and 859.
What is the oldest area code in Kentucky?
502, in service since 1947. Every later code in the state was split off from or overlaid on an existing one.
What is the newest area code in Kentucky?
364, from 2014, overlaying 270.
Is Kentucky getting a new area code?
Yes. 761 is assigned but not yet in service, and NANPA has not published a start date yet.
What time zone is Kentucky in?
It spans 2: Eastern and Central. 270, 364 and 606 cover more than one zone within a single area code, so the code alone does not tell you the time.
Which Kentucky area code gets the most spam complaints?
502 – 1,703 FTC complaints in the 33 days to 30 October 2026, 4th of 422 codes nationally. Those are complaints about the caller ID shown, and spam callers routinely fake a local-looking number, so this says the code is imitated often, not that the calls come from there.
Which carrier holds the most Kentucky numbers?
AT&T, with 30.4% of the 2,778 blocks assigned across Kentucky, ahead of Other CLEC / VoIP at 13.2%. This is allocation of blocks by the numbering administrator, not a count of subscribers – people keep their numbers when they switch carriers.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
Figures on this page are counted from those files, not copied from other sites. Spotted an error? Request a correction. How we collect and check: methodology.