Organization
Citigroup Inc.
CITIGROUPINC-AS-AP
Registered
Feb 12, 2025
1 year ago
IPv4 Prefixes
6
1,536 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream
Registration
AS Number AS153595 AS Name CITIGROUPINC-AS-AP Organization Citigroup Inc. Organization ID ORG-CI23-AP Address 388 Greenwhich St. Country United States (US) Registry APNIC Allocated Feb 12, 2025 Record Created Feb 12, 2025 Last Updated Feb 12, 2025 Status
active
WHOIS Server whois.apnic.net AS Description CITIGROUPINC-AS-AP - Citigroup Inc., US Remarks Citigroup Inc. Abuse Email [email protected] IPv4 Prefixes
6 prefixes · 1,536 addresses Routing data as of 2026-10-10 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 192.193.45.0/24 | 192.193.45.0 – 192.193.45.255 | 256 |
| 192.193.48.0/24 | 192.193.48.0 – 192.193.48.255 | 256 |
| 192.193.73.0/24 | 192.193.73.0 – 192.193.73.255 | 256 |
| 192.193.76.0/24 | 192.193.76.0 – 192.193.76.255 | 256 |
| 192.193.123.0/24 | 192.193.123.0 – 192.193.123.255 | 256 |
| 192.193.131.0/24 | 192.193.131.0 – 192.193.131.255 | 256 |
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
{
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"notices": [
{
"title": "Source",
"description": [
"Objects returned came from source",
"APNIC"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "terms-of-service",
"href": "http://www.apnic.net/db/dbcopyright.html",
"type": "text/html"
}
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "US",
"name": "CITIGROUPINC-AS-AP",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2025-02-12T03:03:06Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-02-12T03:03:13Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "self",
"href": "https://rdap.apnic.net/autnum/153595",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Citigroup Inc."
],
"title": "description"
}
],
"entities": [
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2023-12-06T00:30:55Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-12-06T00:30:55Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "self",
"href": "https://rdap.apnic.net/entity/CIA22-AP",
"type": "application/rdap+json"
}
],
"handle": "CIA22-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Citigroup Inc administrator"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "388 Greenwhich St., New York City New York 10013"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+18553844622"
],
[
"tel",
{
"type": "fax"
},
"text",
"+16462911045"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"registrant"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2023-11-03T13:09:15Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-11-03T13:09:15Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "self",
"href": "https://rdap.apnic.net/entity/ORG-CI23-AP",
"type": "application/rdap+json"
}
],
"handle": "ORG-CI23-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Citigroup Inc."
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "388 Greenwhich St."
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+18553844622"
],
[
"tel",
{
"type": "fax"
},
"text",
"+16462911045"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2023-12-06T00:30:55Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-03-24T15:12:59Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/autnum/153595",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-CITIGROUPINC-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected] was validated on 2026-03-24"
],
"title": "remarks"
}
],
"handle": "IRT-CITIGROUPINC-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-CITIGROUPINC-AP"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "388 Greenwhich St., New York City New York 10013"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "AS153595",
"startAutnum": 153595,
"endAutnum": 153595,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.