Boost is on the Sprint Network, and exchanges that were assigned to Sprint in the 720 area are:
203, 205, 209, 218, 232, 233, 234, 235, 236, 252,
253, 254, 255, 256, 260, 270, 271, 290, 291, 300,
301, 312, 313, 314, 317, 318, 319, 331, 333, 334,
335, 339, 350, 351, 353, 363, 371, 373, 581, 732,
837, 838, 839, 840, 841, 849, 940, 971, 979, 980,
982, 984, 985, 987, 988 & 989.
Remember that phone companies now allow you to "port" your old phone number from one carrier to another, so someone with one of the 720 exchanges above may not still be with Sprint or Boost.
Parker, CO, is in area code 303 and overlay code 720.
Area code 303 and overlay area code 720 serve the Denver, Colorado, and surrounding central Colorado areas, including Boulder, Longmont, Aurora, Arvada, Westminster, Sheridan, Englewood, Greenwood Village, and Edgewater.Area code 303 is overlaid with area code 720, meaning that the same physical service area is served by both area codes (303 and 720) and that ten-digit dialing is required for all calls made within the service area.(Area code 719 is the southeastern part of Colorado. Area code 970 is the western and northern part.)
Boulder CO is in area codes 303 and 720, same as Denver.
Area code 303 and overlay area code 720 serve the Denver, Colorado, and surrounding central Colorado areas, including Boulder, Longmont, Aurora, Arvada, Westminster, Sheridan, Englewood, Greenwood Village, and Edgewater.Area code 303 is overlaid with area code 720, meaning that the same physical service area is served by both area codes (303 and 720) and that ten-digit dialing is required for all local calls made within the service area.(Originally, the 303 area code covered the entire state of Colorado. Area code 719 is the southeastern part of Colorado. Area code 970 is the western and northern part.)
If you mean to -720 then the numbers are 36 and -20
invalid code
The LCM of these numbers is 720. LCM is Least Common Multiple.
The answer is 720 different area codes. This is how you calculate it. There are 10 different numbers for the first category, then 9 for the second and 8 for the third, then you multiply those numbers in this order: 10 x 9=90, then 90 x 8=720.
They are: 8*9*10 = 720
The Denver area began mandatory 10-digit dialing of local calls in 1998, in preparation for the 303/720 area code overlay. All local calls within, between, into, or out from the 303 and 720 area codes must be dialed with 10 digits. Other local calls within area code 970 or within area code 719 may be dialable as either 7 or 10 digits.
80*9= 720
2880