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227 Area Code

Area code 227 serves Frederick, Germantown, Waldorf, Silver Spring, Gaithersburg and nearby communities in Maryland. It has been in service since June 14, 2023, when it was split from 301.

StateMaryland
Time zoneEastern
Local time now…
Prefixes in use142
Overlay with240, 301
Projected to run out2041
FrederickGermantownWaldorfSilver SpringGaithersburgRockvilleBethesdaBowieAspen HillWheatonNorth BethesdaPotomacHagerstownClintonOlneyCollege ParkChillumMontgomery VillageLaurelClarksburgSouth LaurelFairlandBallenger CreekFort WashingtonNorth LaurelGreenbeltSuitlandLandoverNorth PotomacCamp SpringsLangley ParkHyattsvilleBeltsvilleEast RiverdaleRedlandCumberlandMaryland CitySeabrookOxon HillCalvertonGlassmanorTakoma ParkAdelphiDamascusCloverlyGlenmontWhite OakHillcrest HeightsSummerfieldLake ArborGlenn DaleBensvilleKemp MillColesvilleKetteringFlower HillNew CarrolltonBrock HallAccokeekRosaryvilleWestphaliaLanhamLargoFriendlyScaggsvilleSavageRobinwoodWildewoodFountainhead-Orchard HillsFultonCresaptownFrederickGermantownWaldorfSilver Spring
Cities and towns served by area code 227

Who issues 227 numbers

Mobile 50%VoIP and cable 42%Landline 8%

Share of the 142 prefixes (the three digits after 227) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Onvoy (Sinch)44
AT&T Mobility41
T-Mobile21
Verizon Wireless9
Commio7
Wide Voice5
Bandwidth5
Verizon Business (MCImetro)3

Cities and towns in area code 227

CityPopulationOther area codes
Frederick92,059240, 301
Germantown90,521301, 240
Waldorf82,541240, 301
Silver Spring82,129301, 240
Gaithersburg71,113301, 240
Rockville67,563301, 240
Bethesda67,403301, 240
Bowie58,383301, 240
Aspen Hill53,752301, 240
Wheaton52,172301, 240
North Bethesda49,498301, 240
Potomac46,230301, 240
Hagerstown44,228240, 301
Clinton38,756301, 240
Olney36,000301, 240
College Park35,418301, 240
Chillum35,163301, 240
Montgomery Village34,161301, 240
Laurel30,254301, 240
Clarksburg29,246301, 240
South Laurel27,736301, 240
Fairland26,183301, 240
Ballenger Creek25,866240, 301
Fort Washington25,843301, 240
North Laurel25,201301, 240
Greenbelt24,948301, 240
Suitland24,667301, 240
Landover24,558301, 240
North Potomac23,994301, 240
Camp Springs22,174301, 240
Langley Park22,057301, 240
Hyattsville21,158301, 240
Beltsville19,086301, 240
East Riverdale19,043301, 240
Redland18,976301, 240
Cumberland18,799240, 301
Maryland City18,669301, 240
Seabrook18,495301, 240
Oxon Hill18,491301, 240
Calverton17,721301, 240

Showing the 40 largest of 71 places with 5,000+ residents.

Got a call from 227?

A 227 number was originally issued in Maryland, but that does not prove the caller is there. 42% of 227 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 142 prefixes in area code 227

Format: (227) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 227

Where is area code 227?
Area code 227 is in Maryland. It covers Frederick, Germantown, Waldorf, Silver Spring, Gaithersburg, Rockville and 65 more cities and towns.
What time zone is area code 227?
Area code 227 is in the Eastern time zone.
Is 227 a toll-free number?
No. 227 is a geographic area code in Maryland. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 227 share its area with 240 and 301?
227, 240 and 301 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 227 run out of numbers?
NANPA's latest forecast projects the 227/240/301 overlay to exhaust in the first quarter of 2041. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Maryland