📞Area Code 203 — Connecticut
US area code 203 serves Connecticut. See the full profile: state, neighboring area codes, and lookup API.
Key facts
Area code203
State / territoryConnecticut
Other codes in state475, 860, 959
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=203 HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "databases/area-codes", "result": { "value": 203, "answer": "Area code 203 — Connecticut" }}Frequently asked questions
Area code — Area Code 203 — Connecticut?
Area Code 203 — Connecticut: Area code — 203.
State / territory — Area Code 203 — Connecticut?
Area Code 203 — Connecticut: State / territory — Connecticut.
Other codes in state — Area Code 203 — Connecticut?
Area Code 203 — Connecticut: Other codes in state — 475, 860, 959.
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.