Registration
IPv4 Prefixes
7 prefixes · 5,888 addresses Routing data as of 2026-10-09 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 139.131.31.0/24 | 139.131.31.0 – 139.131.31.255 | 256 |
| 139.131.144.0/22 | 139.131.144.0 – 139.131.147.255 | 1,024 |
| 139.131.148.0/22 | 139.131.148.0 – 139.131.151.255 | 1,024 |
| 139.131.152.0/22 | 139.131.152.0 – 139.131.155.255 | 1,024 |
| 139.131.156.0/22 | 139.131.156.0 – 139.131.159.255 | 1,024 |
| 139.131.212.0/22 | 139.131.212.0 – 139.131.215.255 | 1,024 |
| 139.131.224.0/23 | 139.131.224.0 – 139.131.225.255 | 512 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
4 unique neighbours · 2 upstream/peer · 1 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 right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). 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 (2)
Downstream side (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS14297 ACI-WORLDWIDE - ACI Worldwide, Inc. 262 668 0 Collector-only (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS3549 LVLT-3549 - Level 3 Parent, LLC 1 1 0
Raw RDAP Response
{
"endAutnum": 53927,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-04T04:40:15-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-08-04T08:45:43-04:00"
}
],
"handle": "NETWO4496-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO4496-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/53927"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO4496-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/53927"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "6060 Coventry Drive\nElkhorn\nNE\n68022\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Engineering"
],
[
"org",
{},
"text",
"ACI Worldwide"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-402-390-7600"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-404-923-6900"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2011-09-24T08:30:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-08-05T13:19:48-04:00"
}
],
"handle": "AW-12",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/AW-12",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/53927"
},
{
"href": "https://whois.arin.net/rest/org/AW-12",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/53927"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"ACI Worldwide, Inc."
],
[
"adr",
{
"label": "6060 Coventry Drive\nElkhorn\nNE\n68022\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-06-04T17:35:18-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-08-10T11:21:38-04:00"
}
],
"handle": "AS53927",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/53927",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/53927"
},
{
"href": "https://whois.arin.net/rest/asn/AS53927",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/53927"
}
],
"name": "ACI-WORLDWIDE",
"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/53927"
}
],
"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/53927"
}
],
"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": 53927,
"status": [
"active"
]
} Contact details of private individuals are redacted.