Organization
Nasdaq, Inc.
AS-ASN-2
Registered
Dec 01, 2016
9 years ago
IPv4 Prefixes
3
1,280 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream
Registration
AS Number AS54572 AS Name AS-ASN-2 Organization Nasdaq, Inc. Organization ID NOG-5 Address 151 West 42nd Street, New York, NY, 10036, United States Country United States (US) Registry ARIN Allocated Dec 01, 2016 Record Created Dec 01, 2016 Last Updated Dec 01, 2016 Status
active
WHOIS Server whois.arin.net AS Description AS-ASN-2 - Nasdaq, Inc., US Abuse Email [email protected] Abuse Phone +1-212-231-5180 IPv4 Prefixes
3 prefixes · 1,280 addresses Routing data as of 2026-10-17 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 198.55.221.0/24 | 198.55.221.0 – 198.55.221.255 | 256 |
| 204.190.16.0/23 | 204.190.16.0 – 204.190.17.255 | 512 |
| 204.190.18.0/23 | 204.190.18.0 – 204.190.19.255 | 512 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
3 unique neighbours · 3 upstream/peer · 0 downstream. 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. Upstream & peer side (3)
Raw RDAP Response
{
"endAutnum": 54572,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-12T13:10:08-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-02-01T10:57:36-05:00"
}
],
"handle": "MAR193-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MAR193-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/54572"
},
{
"href": "https://whois.arin.net/rest/poc/MAR193-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/54572"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-19T09:33:07-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-01-27T11:31:09-05:00"
}
],
"handle": "NETWO4824-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO4824-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/54572"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO4824-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/54572"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Standard Network Engineering operating hours are 8am to 8pm EST\r",
"\r",
"http://www.nasdaq.com"
],
"title": "Registration Comments"
}
],
"roles": [
"technical",
"abuse",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "151 West 42nd Street\nNew York\nNY\n10036\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Engineering"
],
[
"org",
{},
"text",
"NASDAQ Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-212-231-5180"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-12-19T13:44:35-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-02-01T11:15:24-05:00"
}
],
"handle": "NOG-5",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOG-5",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/54572"
},
{
"href": "https://whois.arin.net/rest/org/NOG-5",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/54572"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Nasdaq, Inc."
],
[
"adr",
{
"label": "151 West 42nd Street\nNew York\nNY\n10036\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2016-12-01T12:05:08-05:00"
},
{
"eventAction": "registration",
"eventDate": "2016-12-01T12:05:08-05:00"
}
],
"handle": "AS54572",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/54572",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/54572"
},
{
"href": "https://whois.arin.net/rest/asn/AS54572",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/54572"
}
],
"name": "AS-ASN-2",
"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/54572"
}
],
"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/54572"
}
],
"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": 54572,
"status": [
"active"
]
} Contact details of private individuals are redacted.