12.131.23.28 IP Address SummaryIP Address Location Information for 12.131.23.28 City: San MateoState: CaliforniaCountry: United States of AmericaPostal Code: 94401Time Zone: -07:00Host Info for 12.131.23.28 ISP: Barker Blue DigitalDomain: barkerblue.comNetwork Speed: COMPProxy Information for 12.131.23.28 Known Proxy: noASN Information for 12.131.23.28 ASN: 7018Organization: AT&T Services Inc.ASN IP Range: 12.131.16.0/20Copy All IP ResultsPrint All IP Results