99.57.244.0/22
AS7018 · AT&T Services, Inc.
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NetHandle: NET-99-10-64-0-1 OrgID: AC-3280 Parent: NET-99-0-0-0-0 NetName: SBCIS-SBIS NetRange: 99.10.64.0 - 99.75.191.255 NetType: allocation OriginAS: 7132 RegDate: 2008-02-25 Updated: 2018-07-19 Source: ARIN OrgID: AC-3280 OrgName: AT&T Corp. CanAllocate: Street: 7277 164th Ave NE Street: Attn: IP Management City: Redmond State/Prov: WA Country: US PostalCode: 98052 Comment: For policy abuse issues contact abuse@att.net Comment: For all subpoena, Internet, court order related matters and emergency requests contact Comment: 11760 US Highway 1 Comment: North Palm Beach, FL 33408 Comment: Main Number: 800-635-6840 Comment: Fax: 888-938-4715 RegDate: 2018-03-05 Updated: 2021-06-26 OrgAdminHandle: ZS44-ARIN OrgTechHandle: ZS44-ARIN OrgAbuseHandle: ABUSE7-ARIN Source: ARIN POCHandle: ABUSE7-ARIN IsRole: Y LastName: abuse FirstName: Street: 2701 W 15th ST City: Plano State/Prov: TX Country: US PostalCode: 75075 RegDate: 2002-08-24 Updated: 2018-03-08 OfficePhone: +1-919-319-8167 Mailbox: abuse@att.net Source: ARIN POCHandle: ZS44-ARIN IsRole: Y LastName: IPAdmin-ATT Internet Services FirstName: Street: 7277 164th Ave NE Street: Attn: IP Management City: Redmond State/Prov: WA Country: US PostalCode: 98052 RegDate: 2000-05-17 Updated: 2024-03-12 OfficePhone: +1-888-510-5545 Mailbox: ipadmin@att.com Mailbox: ipadmin@semail.att.com Source: ARIN
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What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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