# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2021, American Registry for Internet Numbers, Ltd. # NetRange: 38.0.0.0 - 38.255.255.255 CIDR: 38.0.0.0/8 NetName: COGENT-A NetHandle: NET-38-0-0-0-1 Parent: () NetType: Direct Allocation OriginAS: AS174 Organization: PSINet, Inc. (PSI) RegDate: 1991-04-16 Updated: 2018-06-20 Comment: IP allocations within 38.0.0.0/8 are used for Cogent customer static IP assignments. Comment: Comment: Reassignment information for this block can be found at Comment: rwhois.cogentco.com 4321 Ref: https://rdap.arin.net/registry/ip/38.0.0.0 OrgName: PSINet, Inc. OrgId: PSI Address: 2450 N Street NW City: Washington StateProv: DC PostalCode: 20037 Country: US RegDate: Updated: 2015-06-04 Comment: rwhois.cogentco.com Ref: https://rdap.arin.net/registry/entity/PSI ReferralServer: rwhois://rwhois.cogentco.com:4321 OrgAbuseHandle: COGEN-ARIN OrgAbuseName: Cogent Abuse OrgAbusePhone: +1-877-875-4311 OrgAbuseEmail: abuse@cogentco.com OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN OrgNOCHandle: ZC108-ARIN OrgNOCName: Cogent Communications OrgNOCPhone: +1-877-875-4311 OrgNOCEmail: noc@cogentco.com OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN OrgTechHandle: IPALL-ARIN OrgTechName: IP Allocation OrgTechPhone: +1-877-875-4311 OrgTechEmail: ipalloc@cogentco.com OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN RTechHandle: PSI-NISC-ARIN RTechName: IP Allocation RTechPhone: +1-877-875-4311 RTechEmail: ipalloc@cogentco.com RTechRef: https://rdap.arin.net/registry/entity/PSI-NISC-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2021, American Registry for Internet Numbers, Ltd. # Found a referral to rwhois.cogentco.com:4321. %rwhois V-1.5:0010b0:00 rwhois.cogentco.com (CGNT rwhoisd 0.0.0) network:ID:NET4-266480081D network:Network-Name:NET4-266480081D network:IP-Network:38.100.128.8/29 network:Org-Name:Cogent communications - IPENG network:Street-Address:Lyoner Strasse 15 network:City:Frankfurt network:Country:DE network:Postal-Code:60528 network:Tech-Contact:ZC108-ARIN network:Updated:2016-05-04 10:03:34 %ok

10.128.100.38.in-addr.arpa domain name pointer cogentco.com.

; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.9 <<>> 38.100.128.10 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50526 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;38.100.128.10. IN A ;; AUTHORITY SECTION: . 86309 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2024012000 1800 900 604800 86400 ;; Query time: 4 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Sat Jan 20 12:13:54 UTC 2024 ;; MSG SIZE rcvd: 117

10.128.100.38.in-addr.arpa name = cogentco.com. Authoritative answers can be found from:

PING 38.100.128.10 (38.100.128.10) 56(84) bytes of data. 64 bytes from 38.100.128.10: icmp_seq=1 ttl=53 time=8.82 ms 64 bytes from 38.100.128.10: icmp_seq=2 ttl=53 time=8.66 ms 64 bytes from 38.100.128.10: icmp_seq=3 ttl=53 time=8.45 ms --- 38.100.128.10 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 8.456/8.651/8.829/0.152 ms

traceroute to 38.100.128.10 (38.100.128.10), 30 hops max, 60 byte packets 1 gateway (172.31.1.1) 4.427 ms 4.397 ms 4.404 ms 2 18432.your-cloud.host (168.119.216.134) 2.351 ms 2.373 ms 2.433 ms 3 * * * 4 spine5.cloud1.nbg1.hetzner.com (78.46.28.153) 25.741 ms 25.744 ms spine6.cloud1.nbg1.hetzner.com (78.46.28.157) 3.603 ms 5 * * * 6 core11.nbg1.hetzner.com (213.239.239.121) 3.574 ms core12.nbg1.hetzner.com (213.239.203.105) 1.021 ms 0.999 ms 7 juniper6.dc2.nbg1.hetzner.com (213.239.245.74) 1.191 ms juniper6.dc2.nbg1.hetzner.com (213.239.245.78) 0.541 ms juniper6.dc2.nbg1.hetzner.com (213.239.245.74) 0.473 ms 8 * * * 9 be3161.rcr21.nue01.atlas.cogentco.com (154.25.14.45) 1.032 ms 1.015 ms 0.968 ms 10 be2995.ccr21.muc03.atlas.cogentco.com (154.54.58.193) 3.135 ms be2996.ccr22.muc03.atlas.cogentco.com (154.54.59.193) 2.912 ms be2995.ccr21.muc03.atlas.cogentco.com (154.54.58.193) 2.969 ms 11 be5162.ccr42.fra03.atlas.cogentco.com (154.54.36.89) 8.443 ms 8.553 ms be2960.ccr42.fra03.atlas.cogentco.com (154.54.36.253) 8.540 ms 12 be2157.rcr21.b023657-1.fra03.atlas.cogentco.com (154.54.56.34) 8.584 ms 8.539 ms 8.459 ms 13 cogentco.com (38.100.128.10) 8.313 ms !X 8.307 ms !X 8.158 ms !X

Country code: US Country name: United States of America ASN: AS174 Cogent Communications