Central Office Exchange (NXX)

+1 (720) 588-XXXX

Serving Denver, Colorado, United States • Carrier: 365 Wireless

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Looking for a specific 4-digit line in the +1 (720) 588 block? Enter the last 4 digits below to inspect caller data and spam reports immediately:

+1 (720) 588 -

Sample Active Numbers in this Prefix

Random representative sampling of telephone lines in the 1-720-588 block

720-588 0403
720-588 0515
720-588 0698
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720-588 1330
720-588 1521
720-588 1622
720-588 2104
720-588 2510
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720-588 3980
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720-588 4726
720-588 5009
720-588 5719
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720-588 6874
720-588 6915
720-588 6944
720-588 6978
720-588 7834
720-588 7945
720-588 8011
720-588 8380
720-588 8550
720-588 8873
720-588 8936
720-588 8976
720-588 9369
720-588 9610

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Telecommunication Guide for Exchange 720-588

Under the North American Numbering Plan (NANP), a standard 10-digit telephone number is organized as NPA-NXX-XXXX:

  • NPA (Numbering Plan Area): 720 identifies the geographic region within Colorado.
  • NXX (Central Office Exchange): 588 identifies the local telephone exchange or switching office serving Denver, Colorado.
  • XXXX (Subscriber Line Number): 10,000 distinct telephone lines (ranging from 0000 to 9999) are routed through this exchange.
How to Correctly Dial Numbers in this Prefix:
Call Origin Dialing Instructions Example
Local or Domestic (US/Canada) Dial 1 + 10-Digit Number 1 (720) 588-XXXX
Mobile / Wireless Devices Dial with international plus symbol +1 720 588 XXXX
International Callers Local exit code + 1 + Number 00 1 720 588 XXXX

Frequently Asked Questions

The registered service provider for this exchange is 365 Wireless. Note that individual line numbers may have been transferred to other providers via Local Number Portability (LNP).
Calls from this prefix could originate from local businesses, hospitals, friends, or automated dialers. If you received an unsolicited call from an unknown party in this exchange, enter the full 4 digits in our search box above to check for community scam or telemarketer reports.

Exchange Information

  • Country: Unites States (+1)
  • State: Colorado
  • City / Area: Denver
  • Area Code: 720
  • Prefix (NXX): 588
  • Carrier: 365 Wireless
  • Type: Wireless
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Area Code 720

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