📞Area Code 339 — Massachusetts
US area code 339 serves Massachusetts. See the full profile: state, neighboring area codes, and lookup API.
Key facts
Area code339
State / territoryMassachusetts
Other codes in state351, 413, 508, 617, 774, 781, 857, 978
Machine API (x402)
$0.001 / callThe same query is available to AI agents as a paid JSON endpoint — pre-configured for this subject:
GET /api/v1/databases/area-codes?code=339 HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "databases/area-codes", "result": { "value": 339, "answer": "Area code 339 — Massachusetts" }}Frequently asked questions
Area code — Area Code 339 — Massachusetts?
Area Code 339 — Massachusetts: Area code — 339.
State / territory — Area Code 339 — Massachusetts?
Area Code 339 — Massachusetts: State / territory — Massachusetts.
Other codes in state — Area Code 339 — Massachusetts?
Area Code 339 — Massachusetts: Other codes in state — 351, 413, 508, 617, 774, 781, 857, 978.
Do overlay codes appear separately?
Yes — overlay codes (two codes serving the same region) are listed as distinct entries, each mapped to its state.
Does this cover Canada and the Caribbean?
The dataset focuses on US area codes. Canadian and Caribbean NANP codes are planned for a future expansion.