Who Called from (720) 559-XXXX?
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Phone Numbers: (720) 559-XXXX
Recently Searched Numbers in the 720 Area Code
About the (720) 559 Prefix
The (720) 559 prefix serves Denver, Colorado, United States. Phone numbers in this exchange follow the format (720) 559-XXXX. The primary carrier assigned to this prefix is Verizon.
(720) 559 Geographic Info
- Primary City
- Denver
- State
- Colorado, United States
- Primary Carrier
- Verizon
Other Prefixes in the 720 Area Code
Whether you're screening a missed call or just curious, understanding how phone systems work puts you in control:
The National Do Not Call Registry is free, permanent, and takes effect within 31 days. Legitimate telemarketers are legally required to check the registry and stop calling registered numbers. However, it has no effect on scammers and illegal robocallers who are already breaking the law.
Read more: How to Stop Spam Calls on iPhone and Android (2026 Guide) →Frequently Asked Questions
What area code is (720) 559?
(720) 559 is a telephone prefix in the 720 area code, which serves Denver, Colorado, United States.
Where is the (720) 559 prefix located?
Phone numbers with the (720) 559 prefix are located in Denver, Colorado, United States. The primary carrier for this prefix is Verizon.
What carrier uses the (720) 559 prefix?
The primary carrier assigned to the (720) 559 prefix is Verizon. However, numbers may be ported to other carriers over time.
How do I look up a phone number with the (720) 559 prefix?
Enter the full 10-digit number (e.g. (720) 559-XXXX) into ClarityCheck's reverse phone lookup to instantly see the owner's name, address, social profiles, and more.