Organization
Core-Backbone GmbH
XIRRA
Registered
Feb 07, 2011
15 years ago
IPv4 Prefixes
8
7,168 addresses
IPv6 Prefixes
250
524,291 × /48
BGP Neighbours
4
4 upstream/peer · 0 downstream
Registration
AS Number AS51191 AS Name XIRRA Organization Core-Backbone GmbH Organization ID ORG-IICG1-RIPE Address Deutschherrnstr. 15-19, 90429, Nürnberg, GERMANY Country Germany (DE) Registry RIPE NCC Allocated Feb 07, 2011 Record Created Feb 07, 2011 Last Updated Jun 25, 2025 Status
active
WHOIS Server whois.ripe.net AS Description XIRRA - Core-Backbone GmbH, DE Abuse Email [email protected] IPv4 Prefixes
8 prefixes · 7,168 addresses · 7 top-level Routing data as of 2026-10-08 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 91.232.96.0/23 | 91.232.96.0 – 91.232.97.255 | 512 |
| 130.185.104.0/21 | 130.185.104.0 – 130.185.111.255 | 2,048 |
| 185.24.68.0/22 | 185.24.68.0 – 185.24.71.255 | 1,024 |
| 185.108.216.0/22 | 185.108.216.0 – 185.108.219.255 | 1,024 |
| 185.169.24.0/24 | 185.169.24.0 – 185.169.24.255 | 256 |
| 185.169.25.0/24 | 185.169.25.0 – 185.169.25.255 | 256 |
| 195.138.240.0/21 | 195.138.240.0 – 195.138.247.255 | 2,048 |
| 195.138.244.0/24 | 195.138.244.0 – 195.138.244.255 | 256 |
IPv6 Prefixes
250 prefixes · 524,291 × /48 · 4 top-level Routing data as of 2026-10-08 16:00 UTC
2a01::/16 · 3 prefixes · 3 × /48
| Prefix | Addresses |
|---|---|
| 2a01:4a0:2000:: | 280 |
| 2a01:4a0:2001:: | 280 |
| 2a01:4a0:2002:: | 280 |
2a06::/16 · 247 prefixes · 524,288 × /48
BGP Neighbours
4 unique neighbours · 4 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 (4)
Raw RDAP Response
{
"handle": "AS51191",
"startAutnum": 51191,
"endAutnum": 51191,
"name": "XIRRA",
"status": [
"active"
],
"entities": [
{
"handle": "CORE-BACKBONE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CORE-BACKBONE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "LG6981-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/LG6981-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "ORG-IICG1-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Core-Backbone GmbH"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Deutschherrnstr. 15-19\n90429\nNürnberg\nGERMANY"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+4991131043200"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-IICG1-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RIPE-NCC-END-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "CN2660-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Core-Backbone Netmaster"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Deutschherrnstr. 15-19\n90429 Nürnberg\nGermany"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "CORE-BACKBONE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/CORE-BACKBONE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "DM2147-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/DM2147-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
"objectClassName": "entity"
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51191",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51191?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS51191",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51191",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51191?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS51191",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/51191",
"type": "application/rdap+json"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2011-02-07T16:13:12Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-06-25T06:17:58Z"
}
],
"rdapConformance": [
"nro_rdap_profile_asn_flat_0",
"rirSearch1",
"autnums",
"cidr0",
"rdap_level_0",
"nro_rdap_profile_0",
"redacted"
],
"notices": [
{
"title": "Filtered",
"description": [
"This output has been filtered."
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit:"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
"Objects returned came from source",
"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51191",
"rel": "terms-of-service",
"href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
"type": "application/pdf"
}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "autnum",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-IICG1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='CN2660-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.