Organization
Brno University of Technology
VUTBR-AS
Registered
Dec 08, 2010
15 years ago
IPv4 Prefixes
8
67,072 addresses
IPv6 Prefixes
4
851,972 × /48
BGP Neighbours
12
3 upstream/peer · 9 downstream
Registration
AS Number AS197451 AS Name VUTBR-AS Organization Brno University of Technology Organization ID ORG-BUOT1-RIPE Address Antoninska 548/1, 60190, Brno, CZECH REPUBLIC Country Czechia (CZ) Registry RIPE NCC Allocated Dec 08, 2010 Record Created Dec 08, 2010 Last Updated Sep 04, 2018 Status
active
WHOIS Server whois.ripe.net AS Description VUTBR-AS - Brno University of Technology, CZ Remarks ====================================================, Imported from:, rt:197451:100 - Exchange points + direct peering, rt:197451:101 - NIX.CZ, rt:197451:103 - SIX.SK, rt:197451:104 - NIX.SK, rt:197451:105 - BR-IX, rt:197451:106 - Peering.cz, rt:197451:199 - direct peering, rt:197451:200 - Transit u… Abuse Email [email protected] Abuse Phone +420 541145453 IPv4 Prefixes
8 prefixes · 67,072 addresses · 6 top-level Routing data as of 2026-10-08 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 147.229.0.0/17 | 147.229.0.0 – 147.229.127.255 | 32,768 |
| 147.229.128.0/18 | 147.229.128.0 – 147.229.191.255 | 16,384 |
| 147.229.192.0/19 | 147.229.192.0 – 147.229.223.255 | 8,192 |
| 147.229.224.0/19 | 147.229.224.0 – 147.229.255.255 | 8,192 |
| 185.62.108.0/23 | 185.62.108.0 – 185.62.109.255 | 512 |
| 185.149.204.0/22 | 185.149.204.0 – 185.149.207.255 | 1,024 |
| 185.149.204.0/24 | 185.149.204.0 – 185.149.204.255 | 256 |
| 185.149.205.0/24 | 185.149.205.0 – 185.149.205.255 | 256 |
IPv6 Prefixes
4 prefixes · 851,972 × /48 Routing data as of 2026-10-08 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2001:67c:1220:: | 282 |
| 2a03:2e0:: | 296 |
| 2a03:2e4:: | 298 |
| 2a07:6bc0:: | 299 |
BGP Neighbours
12 unique neighbours · 3 upstream/peer · 9 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. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). Upstream & peer side (3)
Downstream side (9)
AS Name AS paths IPv4 sightings IPv6 sightings AS204860 NETX NetX Networks a.s. 934 1,821 1,609 AS210604 asczpernix-neza Pernix systems s.r.o. 536 1,029 0 AS201263 AS-BRIX-CDN Brno University of Technology 507 341 333 AS202872 KMENET KME, spol. s r. o. 439 466 336 AS201931 LBNET LBnet.cz s.r.o. 251 16 336 AS207167 amccomp-master-brno mapnet IT services s.r.o. 216 517 48 AS34222 ZONER-AS ZONER a.s. 62 149 0 AS212138 AS_TSB Technicke site Brno, akciova spolecnost 26 68 0 AS24971 MASTER-AS MasterDC s.r.o. 1 0 1
Raw RDAP Response
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"endAutnum": 197451,
"name": "VUTBR-AS",
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{
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{
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[
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[
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{
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{
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{
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{
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"adr",
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[
"tel",
{
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"text",
"+420 541145453"
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[
"tel",
{
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},
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[
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{
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"text",
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"roles": [
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{
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},
{
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}
],
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{
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{},
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"rel": "self",
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},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
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}
],
"remarks": [
{
"description": [
"====================================================",
"Imported from:",
"rt:197451:100 - Exchange points + direct peering",
"rt:197451:101 - NIX.CZ",
"rt:197451:103 - SIX.SK",
"rt:197451:104 - NIX.SK",
"rt:197451:105 - BR-IX",
"rt:197451:106 - Peering.cz",
"rt:197451:199 - direct peering",
"",
"rt:197451:200 - Transit upstreams",
"rt:197451:201 - Liberty Global",
"rt:197451:202 - T-Mobile",
"rt:197451:203 - CESNET",
"rt:197451:300 - Customers",
"rt:197451:301 - Internal networks",
"Export to:",
"rt:197451:100x - exchange points + direct peering",
"rt:197451:1000 - shorten path to IXP",
"rt:197451:200x - transit upstreams",
"where x is the number of prepends of AS197451",
"(1-3; 9 - not anounce)",
"====================================================="
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS197451",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS197451?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS197451",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS197451",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS197451?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS197451",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/197451",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/197451",
"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": "2010-12-08T11:00:29Z"
},
{
"eventAction": "last changed",
"eventDate": "2018-09-04T10:56:36Z"
}
],
"rdapConformance": [
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"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/197451",
"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/197451",
"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": "$.entities[?(@.handle=='CA6319-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-BUOT1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='CA6319-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.