<?xml version='1.0'?><?xml-stylesheet type='text/xsl' href='https://whois.arin.net/xsl/website.xsl' ?><poc xmlns="https://www.arin.net/whoisrws/core/v1" xmlns:ns2="https://www.arin.net/whoisrws/rdns/v1" xmlns:ns3="https://www.arin.net/whoisrws/netref/v2" copyrightNotice="Copyright 1997-2026, American Registry for Internet Numbers, Ltd." inaccuracyReportUrl="https://www.arin.net/resources/registry/whois/inaccuracy_reporting/" termsOfUse="https://www.arin.net/resources/registry/whois/tou/"><registrationDate>2014-08-13T09:44:41-04:00</registrationDate><rdapRef>https://rdap.arin.net/registry/entity/SIT6-ARIN</rdapRef><ref>https://whois.arin.net/rest/poc/SIT6-ARIN</ref><city>Pittsburgh</city><companyName>Software Engineering Institute</companyName><iso3166-1><code2>US</code2><code3>USA</code3><name>United States</name><e164>1</e164></iso3166-1><handle>SIT6-ARIN</handle><isRoleAccount>Y</isRoleAccount><lastName>SEI Information Technology</lastName><emails><email>it-netreg@sei.cmu.edu</email></emails><resources copyrightNotice="Copyright 1997-2026, American Registry for Internet Numbers, Ltd." inaccuracyReportUrl="https://www.arin.net/resources/registry/whois/inaccuracy_reporting/" termsOfUse="https://www.arin.net/resources/registry/whois/tou/"><limitExceeded limit="256">false</limitExceeded></resources><phones><phone><number>+1-412-268-3416</number><type><description>Office</description><code>O</code></type></phone></phones><pocType><description>General use</description><type>G</type></pocType><postalCode>15213</postalCode><comment><line number="0">The contact info listed in this record is for NOC only. To contact the CERT Coordination Center, please call +1-412-268-7090 or e-mail cert@cert.org.</line></comment><iso3166-2>PA</iso3166-2><status><description>Unverified</description><code>PU</code></status><streetAddress><line number="0">4500 5th Ave</line></streetAddress><updateDate>2025-11-06T10:30:28-05:00</updateDate></poc>