Prefix — 301-279

Enter the phone number below for more information

Phone numbers that start with the 301-279 prefix are normally located in Rockville in Maryland, zip code 20850. Below we've included some detailed information about this area including population size, demographics and household wealth to give you a sense of what the neighborhoods with 301-279-XXXX phone numbers are like.

Rate center(s): WSNGTNZN10

Company(ies): VERIZON MARYLAND, INC.

Information for this County

Name: MONTGOMERY
Seat: ROCKVILLE
Time Zone: 5
Area: 495 sq. miles
Population: 873,341
Average people per household: 3
Number of households: 324,565
Estimated white population: 495
Estimated black population: 565,719
Estimated hispanic population: 132,256

Information for this Zip Code

Zip code: 20850
Residential addresses: 18,103
Business addresses: 2,528
Average household income: $74,655
Average house value: $255,700
Average per capita income: $34,698

View area code information for 301

All phone numbers starting with 301-279:

Get started
right now