National Telephone Number Directory – Central Office Code Prefix 257

Area Code 720 with Central Office Code Prefix 257

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Section Overview:

This page contains a directory for all the phone numbers with prefix 257 in the 720 area code of Denver, CO.

General information:

Primary city:: Denver, CO

Usage:: Landline Numbers

Carrier:: Xo Colorado, LLC

Timezone:: Mountain

Counties:: Jefferson County

Zip:: 80204, 80212

Phone Prefix	Phones Recorded	Owners	Locations
(720) 257-1...	21	23	Beverly Hills, FL Boulder, CO
(720) 257-2...	12	19	Gaithersburg, MD Arvada, CO Westminster, CO
(720) 257-3...	22	24	Englewood, CO Broomfield, CO Parker, CO
(720) 257-4...	19	23	Palmdale, CA Englewood, CO Broomfield, CO
(720) 257-5...	34	56	Anchorage, AK Standing Rock Reservation, SD Bailey, CO
(720) 257-8...	8	9	Arvada, CO Littleton, CO Westminster, CO
(720) 257-7...	14	42	Lakewood, CO Littleton, CO
(720) 257-0...	2	2	Littleton, CO Whittier, CA
(720) 257-9...	9	10	Englewood, CO Aurora, CO

The National Telephone Number Directory

Area Code 720 with Central Office Code Prefix 257