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Phone Numbers: (307) 229-XXXX
Recently Searched Numbers in the 307 Area Code
About the (307) 229 Prefix
The (307) 229 prefix serves Cheyenne, Wyoming, United States. Phone numbers in this exchange follow the format (307) 229-XXXX. The primary carrier assigned to this prefix is AT&T.
(307) 229 Geographic Info
- Primary City
- Cheyenne
- State
- Wyoming, United States
- Primary Carrier
- AT&T
Other Prefixes in the 307 Area Code
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In the Google Phone app on Android, blocking unknown numbers (Settings → Blocked Numbers → toggle on "Unknown") outright rejects calls that don't transmit a caller ID. It's more aggressive than iPhone's Silence Unknown Callers — blocked calls don't go to voicemail.
Read more: How to Stop Spam Calls on iPhone and Android (2026 Guide) →Frequently Asked Questions
What area code is (307) 229?
(307) 229 is a telephone prefix in the 307 area code, which serves Cheyenne, Wyoming, United States.
Where is the (307) 229 prefix located?
Phone numbers with the (307) 229 prefix are located in Cheyenne, Wyoming, United States. The primary carrier for this prefix is AT&T.
What carrier uses the (307) 229 prefix?
The primary carrier assigned to the (307) 229 prefix is AT&T. However, numbers may be ported to other carriers over time.
How do I look up a phone number with the (307) 229 prefix?
Enter the full 10-digit number (e.g. (307) 229-XXXX) into ClarityCheck's reverse phone lookup to instantly see the owner's name, address, social profiles, and more.