Registration
IPv4 Prefixes
4 prefixes · 1,024 addresses Routing data as of 2026-10-10 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 192.147.221.0/24 | 192.147.221.0 – 192.147.221.255 | 256 |
| 192.147.222.0/24 | 192.147.222.0 – 192.147.222.255 | 256 |
| 192.147.223.0/24 | 192.147.223.0 – 192.147.223.255 | 256 |
| 192.147.224.0/24 | 192.147.224.0 – 192.147.224.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
4 unique neighbours · 3 upstream/peer · 0 downstream · 1 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side. Upstream & peer side (3)
Collector-only (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC 1 1 0
Raw RDAP Response
{
"endAutnum": 12236,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-03-16T14:50:13-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-10-28T11:54:25-04:00"
}
],
"handle": "HOSTM1640-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HOSTM1640-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12236"
},
{
"href": "https://whois.arin.net/rest/poc/HOSTM1640-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12236"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2023-03-16"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"administrative",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "440 Lincoln Street\nWorcester\nMA\n01653\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Hostmaster"
],
[
"org",
{},
"text",
"The Hanover Insurance Group"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-508-855-1000"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2011-09-24T08:30:57-04:00"
}
],
"handle": "FAFL",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FAFL",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12236"
},
{
"href": "https://whois.arin.net/rest/org/FAFL",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12236"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Hanover Insurance Group, Inc."
],
[
"adr",
{
"label": "440 Lincoln St.\nWorcester\nMA\n01653\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2010-12-08T15:28:46-05:00"
}
],
"handle": "AS12236",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/12236",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/12236"
},
{
"href": "https://whois.arin.net/rest/asn/AS12236",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/12236"
}
],
"name": "HANOVER",
"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/autnum/12236"
}
],
"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/autnum/12236"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 12236,
"status": [
"active"
]
} Contact details of private individuals are redacted.