Scammers don't have their own area codes -- they fake yours
A caller ID showing your own area code feels trustworthy, which is exactly why robocallers exploit it. The FCC's term for this is neighbor spoofing: the call might genuinely originate anywhere, including overseas, but the caller ID display is deliberately falsified to show a number sharing your area code and even your first few exchange digits. The Truth in Caller ID Act makes this illegal when done with intent to defraud, with penalties up to $10,000 per violation -- but the law hasn't stopped the practice, because the technology to fake caller ID is cheap and widely available to robocall operations.
Practically, this means "is 213 a scam area code" is the wrong question. Any area code can appear on a spoofed call, including your own, and the number displayed tells you nothing reliable about who is actually calling.
The real exception: the 'one ring' scam and six Caribbean NANP codes
There is one well-documented pattern where specific area codes really are disproportionately tied to a scam, and it works differently from neighbor spoofing. Six Caribbean nations and territories are full members of the North American Numbering Plan, meaning their phone numbers use ordinary-looking 3-digit area codes exactly like a US state does -- nothing in the number format signals that it's actually an international call.
The "one ring" (or "Wangiri") scam exploits this directly: an autodialer places a call, lets it ring once, and hangs up before anyone can answer, hoping curiosity drives the recipient to call back. Calling back connects to an international, often premium-rate number, and the recipient gets charged steep per-minute and connection fees that show up later on their phone bill.
NANP area codes the FCC and FTC specifically warn about for the "one ring" scam
| Area code | Country/territory |
|---|---|
| 268 | Antigua and Barbuda |
| 284 | British Virgin Islands |
| 473 | Grenada |
| 649 | Turks and Caicos Islands |
| 809 / 829 / 849 | Dominican Republic |
| 876 | Jamaica |
What to actually do about an unfamiliar call
The FTC's standing advice, independent of which area code shows up, is simple and doesn't require memorizing any list: don't answer calls from numbers you don't recognize, and never call back a number that rang once and disconnected. If you do answer and something feels off, hang up rather than staying on the line to "verify" who they are. Review your phone bill for unexpected international or premium charges if you did call back a one-ring number, and report the call to your carrier.