IPv4 AS & ASN Directory

IP Range CIDR ASN AS Name
11.0.0.0 to 11.255.255.255 11.0.0.0/8 AS749 DoD Network Information Center See Range
12.0.0.0 to 12.0.31.255 12.0.0.0/19 AS7018 AT&T Services Inc. See Range
12.0.32.0 to 12.0.32.255 12.0.32.0/24 AS7018 AT&T Services Inc. See Range
12.0.33.0 to 12.0.33.255 12.0.33.0/24 AS40544 UNASSIGNED See Range
12.0.34.0 to 12.0.35.255 12.0.34.0/23 AS7018 AT&T Services Inc. See Range
12.0.36.0 to 12.0.39.255 12.0.36.0/22 AS7018 AT&T Services Inc. See Range
12.0.40.0 to 12.0.47.255 12.0.40.0/21 AS7018 AT&T Services Inc. See Range
12.0.48.0 to 12.0.63.255 12.0.48.0/20 AS1742 Harvard University See Range
12.0.64.0 to 12.0.71.255 12.0.64.0/21 AS7018 AT&T Services Inc. See Range
12.0.72.0 to 12.0.75.255 12.0.72.0/22 AS7018 AT&T Services Inc. See Range
12.0.76.0 to 12.0.77.255 12.0.76.0/23 AS7018 AT&T Services Inc. See Range
12.0.78.0 to 12.0.78.255 12.0.78.0/24 AS33311 TOPCON POSITIONING SYSTEMS INC See Range
12.0.79.0 to 12.0.79.255 12.0.79.0/24 AS7018 AT&T Services Inc. See Range
12.0.80.0 to 12.0.95.255 12.0.80.0/20 AS7018 AT&T Services Inc. See Range
12.0.96.0 to 12.0.111.255 12.0.96.0/20 AS7018 AT&T Services Inc. See Range
12.0.112.0 to 12.0.119.255 12.0.112.0/21 AS7018 AT&T Services Inc. See Range
12.0.120.0 to 12.0.120.255 12.0.120.0/24 AS53840 Central Coast Internet See Range
12.0.121.0 to 12.0.121.255 12.0.121.0/24 AS7018 AT&T Services Inc. See Range
12.0.122.0 to 12.0.123.255 12.0.122.0/23 AS7018 AT&T Services Inc. See Range
12.0.124.0 to 12.0.125.255 12.0.124.0/23 AS7018 AT&T Services Inc. See Range
12.0.126.0 to 12.0.127.255 12.0.126.0/23 AS14203 Juniper Networks Inc. See Range
12.0.128.0 to 12.0.191.255 12.0.128.0/18 AS7018 AT&T Services Inc. See Range
12.0.192.0 to 12.0.223.255 12.0.192.0/19 AS7018 AT&T Services Inc. See Range
12.0.224.0 to 12.0.231.255 12.0.224.0/21 AS2386 AT&T Data Communications Services See Range
12.0.232.0 to 12.0.239.255 12.0.232.0/21 AS7018 AT&T Services Inc. See Range
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