138 IPv4 prefixes covering 1,288,192 addresses, and 116 IPv6 prefixes
And 88 more
And 66 more
From bgp.tools
Location from GeoLite2 data created by MaxMind
# # 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: 2606:C220:: - 2606:C220:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF CIDR: 2606:C220::/32 NetName: DETERMINATE-01 NetHandle: NET6-2606-C220-1 Parent: NET6-2600 (NET6-2600-1) NetType: Direct Allocation OriginAS: Organization: Determinate Systems, Inc. (DS-1201) RegDate: 2025-12-30 Updated: 2025-12-30 Ref: https://rdap.arin.net/registry/ip/2606:C220:: OrgName: Determinate Systems, Inc. OrgId: DS-1201 Address: 89 Leroi Dr. City: Pittsfield StateProv: MA PostalCode: 01201 Country: US RegDate: 2025-08-21 Updated: 2026-08-11 Comment: https://determinate.systems Ref: https://rdap.arin.net/registry/entity/DS-1201 OrgRoutingHandle: INFRA280-ARIN OrgRoutingName: Infrastructure OrgRoutingPhone: +1-641-649-4357 OrgRoutingEmail: infrastructure-public@determinate.systems OrgRoutingRef: https://rdap.arin.net/registry/entity/INFRA280-ARIN OrgAbuseHandle: INFRA280-ARIN OrgAbuseName: Infrastructure OrgAbusePhone: +1-641-649-4357 OrgAbuseEmail: infrastructure-public@determinate.systems OrgAbuseRef: https://rdap.arin.net/registry/entity/INFRA280-ARIN OrgNOCHandle: INFRA280-ARIN OrgNOCName: Infrastructure OrgNOCPhone: +1-641-649-4357 OrgNOCEmail: infrastructure-public@determinate.systems OrgNOCRef: https://rdap.arin.net/registry/entity/INFRA280-ARIN OrgTechHandle: INFRA280-ARIN OrgTechName: Infrastructure OrgTechPhone: +1-641-649-4357 OrgTechEmail: infrastructure-public@determinate.systems OrgTechRef: https://rdap.arin.net/registry/entity/INFRA280-ARIN OrgDNSHandle: INFRA280-ARIN OrgDNSName: Infrastructure OrgDNSPhone: +1-641-649-4357 OrgDNSEmail: infrastructure-public@determinate.systems OrgDNSRef: https://rdap.arin.net/registry/entity/INFRA280-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. #
From https://rdap.arin.net/registry/ip/2606:c220::
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v6prefix": "2606:C220::",
"length": 32
}
],
"endAddress": "2606:c220:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-20T13:43:44-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-08-21T12:24:23-04:00"
}
],
"handle": "INFRA280-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/INFRA280-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
},
{
"href": "https://whois.arin.net/rest/poc/INFRA280-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://determinate.systems"
],
"title": "Registration Comments"
}
],
"roles": [
"routing",
"abuse",
"noc",
"technical",
"administrative",
"dns"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "89 Leroi Drive\nPittsfield\nMA\n01201\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Infrastructure"
],
[
"org",
{},
"text",
"Determinate Systems, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"infrastructure-public@determinate.systems"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-641-649-4357"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-11T17:18:06-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-08-21T12:35:01-04:00"
}
],
"handle": "DS-1201",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DS-1201",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
},
{
"href": "https://whois.arin.net/rest/org/DS-1201",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://determinate.systems"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Determinate Systems, Inc."
],
[
"adr",
{
"label": "89 Leroi Dr.\nPittsfield\nMA\n01201\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-30T15:15:15-05:00"
},
{
"eventAction": "registration",
"eventDate": "2025-12-30T15:11:05-05:00"
}
],
"handle": "NET6-2606-C220-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2606:c220::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2606-C220-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2606:c220::"
}
],
"name": "DETERMINATE-01",
"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/2606:c220::"
}
],
"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/2606:c220::"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2600-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "2606:c220::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}