38.106.143.0
- Not on blocklists
- Network
- COGENT-A
- Held by
- Cogent Communications, LLC
- Range
- 38.0.0.0 - 38.255.255.255
- CIDR
- 38.0.0.0/8
- Type
- DIRECT ALLOCATION
- Registered on
- Last updated
- Status
- active
- Report abuse to
- abuse@cogentco.com
Network
- Announced by
- AS33151 Trustwave Holdings, Inc.
- Route
- 38.106.143.0/24, carried by 2,499 of bgp.tools' BGP feeds
- Country
- US
Downstreams
- None seen
As the route collectors of RIPEstat see them
Routes AS33151 announces
5 IPv4 prefixes covering 1,280 addresses, and 2 IPv6 prefixes
IPv4
- 38.106.143.0/24
- 64.37.231.0/24
- 204.13.200.0/24
- 204.13.201.0/24
- 208.90.239.0/24
IPv6
From bgp.tools
Location
- Location
- Chicago, Illinois, United States
- Accuracy
- Within 20 km
Location from GeoLite2 data created by MaxMind
Blocklists
- Spamhaus ZEN Not listed
- SpamCop Not listed
- Mailspike Not listed
- PSBL Not listed
Abuse reports
- Reports
- None in the last year
- Used for
- Fixed Line ISP
- Provider
- Trustwave
From AbuseIPDB
WHOIS
# # 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 1997-2026, 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: Organization: Cogent Communications, LLC (COGC) RegDate: 1991-04-16 Updated: 2025-09-23 Ref: https://rdap.arin.net/registry/ip/38.0.0.0 OrgName: Cogent Communications, LLC OrgId: COGC Address: 2450 N Street NW City: Washington StateProv: DC PostalCode: 20037 Country: US RegDate: 2000-05-30 Updated: 2025-09-23 Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv Ref: https://rdap.arin.net/registry/entity/COGC ReferralServer: rwhois://rwhois.cogentco.com:4321 OrgTechHandle: IPALL-ARIN OrgTechName: IP Allocation OrgTechPhone: +1-877-875-4311 OrgTechEmail: ipalloc@cogentco.com OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-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 OrgAbuseHandle: COGEN-ARIN OrgAbuseName: Cogent Abuse OrgAbusePhone: +1-877-875-4311 OrgAbuseEmail: abuse@cogentco.com OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-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 1997-2026, American Registry for Internet Numbers, Ltd. #
RDAP
From https://rdap.arin.net/registry/ip/38.106.143.0
Show the RDAP record
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "38.0.0.0",
"length": 8
}
],
"endAddress": "38.255.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-08T11:04:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-01-24T13:40:39-05:00"
}
],
"handle": "ZC108-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ZC108-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
},
{
"href": "https://whois.arin.net/rest/poc/ZC108-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2450 N Street NW\nWashington\nDC\n20037\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Cogent Communications"
],
[
"org",
{},
"text",
"Cogent Communications"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"noc@cogentco.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-875-4311"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-08T11:04:38-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-11-13T17:21:33-05:00"
}
],
"handle": "COGEN-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/COGEN-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
},
{
"href": "https://whois.arin.net/rest/poc/COGEN-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2450 N street, NW\nWashington\nDC\n20037\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Cogent Abuse"
],
[
"org",
{},
"text",
"Cogent Communications"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"abuse@cogentco.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-875-4311"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-08T11:04:59-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-11-13T17:21:33-05:00"
}
],
"handle": "IPALL-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IPALL-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
},
{
"href": "https://whois.arin.net/rest/poc/IPALL-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"THIS CONTACT DOES NOT RESPOND TO ABUSE OR OPERATIONAL ISSUES\r",
"For abuse issues contact abuse@cogentco.com\r",
"For operational issues contact noc@cogentco.com"
],
"title": "Registration Comments"
}
],
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2450 N Street NW\nWashington\nDC\n20037\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"IP Allocation"
],
[
"org",
{},
"text",
"Cogent Communications"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"ipalloc@cogentco.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-877-875-4311"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-23T12:07:44-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-05-30T00:00:00-04:00"
}
],
"handle": "COGC",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/COGC",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
},
{
"href": "https://whois.arin.net/rest/org/COGC",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Geofeed https://geofeed.cogentco.com/geofeed.csv"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Cogent Communications, LLC"
],
[
"adr",
{
"label": "2450 N Street NW\nWashington\nDC\n20037\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-23T12:13:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "1991-04-16T00:00:00-04:00"
}
],
"handle": "NET-38-0-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/38.0.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
},
{
"href": "https://whois.arin.net/rest/net/NET-38-0-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"name": "COGENT-A",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/38.223.33.195"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "38.0.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}