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AS20555

WSISIZ, WIT, Akademia WIT

Poland (PL)

ASN Information

AS NumberAS20555
AS NameWIT
OrganizationWIT University
Also known asWSISIZ, WIT, Akademia WIT
CountryPoland (PL)
RegistryRIPE NCC
ASN TypeEducational/Research
Last Seen
Announcement Count3
IPv4 Prefix Count2
IPv6 Prefix Count1
RPKI StatusValid ×2Unknown (could not be determined) ×1
IRR RecordsView IRR route objects
Websitehttp://www.wit.edu.pl ↗

AS Path to AS20555

  1. 49544i3Dnet i3D.net B.V
  2. 20555Origin

Most common path, seen 9× in route collector data, latest at a collector in Johannesburg (2026-10-22 08:35:52 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 23 peer session(s)São Paulo: 32 peer session(s)Johannesburg: 39 peer session(s)Singapore: 45 peer session(s)Amsterdam: 47 peer session(s)London: 61 peer session(s)Eugene, OR: 119 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (3)

View All →
PrefixFamilyRPKILast Seen
213.135.44.0/22IPv4ValidNot looked up yet
213.135.48.0/23IPv4ValidNot looked up yet
2001:1a68:a::/48IPv6Not checkedNot looked up yet

Peers (12)

View All →
ASNameRelationshipPathsLast Seen
AS24724ATMAN-Foreign-AS Atman Sp. z o.o.Upstream (inferred)289
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)160
AS8664ICM-PUB University of WarsawUpstream (inferred)69
AS49544i3Dnet i3D.net B.VUpstream (inferred)9
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)7
AS1887NASK-ACADEMIC NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZYUpstream (inferred)6
AS24940HETZNER-AS Hetzner Online GmbHUpstream (inferred)3
AS24748THINX_Poland Atman Sp. z o.o.Upstream (inferred)2

Neighbours seen next to AS20555 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (2)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
THINX WarsawWarsaw, PL212.91.0.1632001:7f8:60::1026:910GYes
TPIX PLWarsaw, PL195.149.232.322001:7f8:27::2:555:11GYes

IX ports registered by AS20555 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS20555.

Data centres where AS20555 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-WSISIZ
Member of AS-SETsSee IRR page
Peering policyOpen
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic100-1000Mbps
Traffic ratioBalanced
Geographic scopeRegional
Max prefixes (IPv4 / IPv6)10 / 10
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS20555.

Only contacts the network has chosen to publish are shown.

Upstreams (11)

ASNameRelationshipPathsLast Seen
AS24724ATMAN-Foreign-AS Atman Sp. z o.o.Upstream (inferred)289
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)160
AS8664ICM-PUB University of WarsawUpstream (inferred)69
AS49544i3Dnet i3D.net B.VUpstream (inferred)9
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)7
AS1887NASK-ACADEMIC NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZYUpstream (inferred)6
AS24940HETZNER-AS Hetzner Online GmbHUpstream (inferred)3
AS24748THINX_Poland Atman Sp. z o.o.Upstream (inferred)2
AS6204ZET-NET INTERKVM HOST SRLUpstream (inferred)1
AS33891CORE-BACKBONE Core-Backbone GmbHUpstream (inferred)Inferred—
AS201054EPIX-PolMix Stowarzyszenie e-PoludnieUpstream (inferred)Inferred—

Downstreams (0)

No downstream ASNs found for AS20555 in current data sources.

Registry and network details

Registered holderWIT Akademia WIT w Warszawie
RegisteredYes
Peering policyOpen
IRR AS-setAS-WSISIZ
Registry record last modified
MaintainersRIPE-NCC-END-MNT, WSISIZ-MNT
Internet exchanges2
Facilities0
Network profile updated

Data updated . See limitations.