Organization
ARPNET WOJCIECH CHODACKI
ARPNET-AS
Registered
Dec 01, 2010
15 years ago
IPv4 Prefixes
2
768 addresses
IPv6 Prefixes
1
1 × /48
BGP Neighbours
7
6 upstream/peer · 0 downstream · 1 collector-only
Registration
AS Number AS51931 AS Name ARPNET-AS Organization ARPNET WOJCIECH CHODACKI Organization ID ORG-AWC2-RIPE Address ul. Orzegowska 22, Ruda Slaska, Poland Country Poland (PL) Registry RIPE NCC Allocated Dec 01, 2010 Record Created Dec 01, 2010 Last Updated Jan 02, 2023 Status
active
WHOIS Server whois.ripe.net AS Description ARPNET-AS - ARPNET WOJCIECH CHODACKI, PL Abuse Email [email protected] IPv4 Prefixes
2 prefixes · 768 addresses Routing data as of 2026-10-09 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 85.11.117.0/24 | 85.11.117.0 – 85.11.117.255 | 256 |
| 91.221.122.0/23 | 91.221.122.0 – 91.221.123.255 | 512 |
IPv6 Prefixes
1 prefix · 1 × /48 Routing data as of 2026-10-09 08:00 UTC
| Prefix | Addresses |
|---|---|
| 2a06:aa40:cadb:: | 280 |
BGP Neighbours
7 unique neighbours · 6 upstream/peer · 0 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 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 (6)
AS Name AS paths IPv4 sightings IPv6 sightings AS50607 EPIX-KTW-GlobalMix Stowarzyszenie e-Poludnie 249 660 0 AS30851 SILEMAN-RUDASL-AS Sileman Sp. z o.o. 28 70 0 AS201054 EPIX-PolMix Stowarzyszenie e-Poludnie 12 30 0 AS24482 SGGS-AS-AP - SG.GS 2 8 12 AS1820 WNET - WNET TELECOM USA Corp. 1 0 1 AS20473 AS-VULTR - The Constant Company, LLC 1 0 1 Collector-only (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS49544 i3Dnet i3D.net B.V 1 4 0
Raw RDAP Response
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"endAutnum": 51931,
"name": "ARPNET-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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[
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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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},
{
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"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51931?status=active",
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},
{
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"rel": "rdap-down",
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},
{
"value": "https://rdap.db.ripe.net/autnum/51931",
"rel": "rdap-top",
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"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51931",
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"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51931?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51931",
"rel": "rdap-bottom",
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"type": "application/rdap+json"
},
{
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"rel": "self",
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"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": "2010-12-01T11:52:58Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-01-02T15:51:15Z"
}
],
"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/51931",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
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"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/51931",
"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": "$.entities[?(@.handle=='ORG-AWC2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='WC521-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
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},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='AR21590-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.