172.12.138.237 🇺🇸

The public IP address 172.12.138.237 is located in Pittsburg, California, 94565, United States. It is assigned to the ISP AT&T Internet. The address belongs to ASN 7018 which is delegated to ATT-INTERNET4.
Please have a look at the tables below for full details about 172.12.138.237, or use the IP Lookup tool to find the approximate IP location for any public IP address.

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172.12.138.237 IP Address Location

Reverse IP (PTR)172-12-138-237.lightspeed.sntcca.sbcglobal.net
ASN7018 (ATT-INTERNET4)
ISP / OrganizationAT&T Internet
IP Connection TypeCable/DSL [internet speed test]
IP LocationPittsburg, California, 94565, United States
IP ContinentNorth America
IP Country🇺🇸 United States (US)
IP StateCalifornia (CA)
IP CityPittsburg
IP Postcode94565
IP Latitude37.9985 / 37°59′54″ N
IP Longitude-121.8878 / 121°53′16″ W
IP TimezoneAmerica/Los_Angeles
IP Local Time

IANA IPv4 Address Space Allocation for Subnet 172.0.0.0/8

IPv4 Address Space Prefix172/8
Regional Internet Registry (RIR)Administered by ARIN
Allocation Date
WHOIS Serverwhois.arin.net
RDAP Serverhttps://rdap.arin.net/registry, http://rdap.arin.net/registry
StatusLEGACY
Allocated by the central Internet Registry (IR) prior to the Regional Internet Registries (RIRs). This address space is now administered by individual RIRs as noted, including maintenance of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally on a regional basis.
Notes

172.16.0.0/12 reserved for Private-Use Networks [RFC1918].

Complete registration details are found in IANA registry iana-ipv4-special-registry.

172.12.138.237 IP Address Representations

CIDR Notation172.12.138.237/32
Decimal Notation2886503149
Hexadecimal Notation0xac0c8aed
Octal Notation025403105355
Binary Notation10101100000011001000101011101101
Dotted-Decimal Notation172.12.138.237
Dotted-Hexadecimal Notation0xac.0x0c.0x8a.0xed
Dotted-Octal Notation0254.014.0212.0355
Dotted-Binary Notation10101100.00001100.10001010.11101101