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Area Code for Round Rock City in Williamson County, Texas State, USA Area Code Lookup

Round Rock is a town/City in Williamson County, Texas in USA . The ZIP codes or postal codes are used within the United States to help the United States Postal Service (USPS) to send or receive mail more efficiently. Following are the Country Codes, Phone Codes, Dialing Codes Area Codes by Zip codes used in theRound Rock, Williamson County, Texas, Usa. Following List of Area codes / Dialing Codes by ZIP Codes in Round Rock, Williamson County, Texas Round Rock, Williamson County, Texas, Usa
SL No. Zip Code City County State Country Area Code
1 78664 Round Rock Williamson County Texas Usa 512
2 78665 Round Rock Williamson County Texas Usa 512
3 78680 Round Rock Williamson County Texas Usa 512
4 78681 Round Rock Williamson County Texas Usa 512
5 78682 Round Rock Williamson County Texas Usa 512
6 78683 Round Rock Williamson County Texas Usa 512
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