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AS21283

A1 Slovenija

Slovenia (SI)

ASN Information

AS NumberAS21283
AS NameA1SI-AS
OrganizationA1 Slovenija
Also known asA1 Slovenija
CountrySlovenia (SI)
RegistryRIPE NCC
ASN TypeCable/DSL/ISP
Last Seen
Announcement Count21
IPv4 Prefix Count18
IPv6 Prefix Count3
RPKI StatusUnknown (could not be determined) ×21
IRR RecordsView IRR route objects
Websitehttp://www.A1.si/ ↗

AS Path to AS21283

  1. 58511—
  2. 8447A1TELEKOM-AT A1 Telekom Austria AG
  3. 21283Origin

Most common path, seen 4× in route collector data, latest at a collector in Eugene, OR (2026-10-23 12:37:32 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 19 peer session(s)Singapore: 22 peer session(s)Amsterdam: 24 peer session(s)London: 30 peer session(s)Eugene, OR: 55 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 (21)

View All →
PrefixFamilyRPKILast Seen
46.122.0.0/15IPv4Not checkedNot looked up yet
46.122.64.0/21IPv4Not checkedNot looked up yet
46.122.96.0/21IPv4Not checkedNot looked up yet
46.164.0.0/18IPv4Not checkedNot looked up yet
62.84.224.0/20IPv4Not checkedNot looked up yet
80.95.224.0/20IPv4Not checkedNot looked up yet
85.10.0.0/19IPv4Not checkedNot looked up yet
85.10.32.0/20IPv4Not checkedNot looked up yet

Peers (47)

View All →
ASNameRelationshipPathsLast Seen
AS8447A1TELEKOM-AT A1 Telekom Austria AGUpstream (inferred)163
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)9
AS9498BBIL-AP - BHARTI Airtel Ltd.Upstream (inferred)2
AS39120CONVERGENZE-AS Convergenze S.p.A.Upstream (inferred)2
AS132337ANSPL-AS-AP - AxclusiveUpstream (inferred)1
AS1853—Upstream (inferred)Inferred—
AS3212—UncertainInferred—
AS3303SWISSCOM Swisscom (Schweiz) AGUpstream (inferred)Inferred—

Neighbours seen next to AS21283 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
SIX SILjubljana, SI91.220.194.1122001:7f8:46::2:1283100GYes
VIXVienna, AT193.203.0.512001:7f8:30:0:1:1:2:128320GYes

IX ports registered by AS21283 (self-reported by the network).

Interconnection Facilities (1)

FacilityCityCountry
SIX SI Ljubljana Technology ParkLjubljanaSlovenia

Data centres where AS21283 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-A1SI
Member of AS-SETsSee IRR page
Peering policySelective
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic100-200Gbps
Traffic ratioMostly Inbound
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)200 / 25
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (1)

RoleNameEmailPhone
AbuseAbuseabuse@a1.si—

Only contacts the network has chosen to publish are shown.

Upstreams (12)

ASNameRelationshipPathsLast Seen
AS8447A1TELEKOM-AT A1 Telekom Austria AGUpstream (inferred)163
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)9
AS9498BBIL-AP - BHARTI Airtel Ltd.Upstream (inferred)2
AS39120CONVERGENZE-AS Convergenze S.p.A.Upstream (inferred)2
AS132337ANSPL-AS-AP - AxclusiveUpstream (inferred)1
AS1853—Upstream (inferred)Inferred—
AS3303SWISSCOM Swisscom (Schweiz) AGUpstream (inferred)Inferred—
AS14840—Upstream (inferred)Inferred—
AS22356—Upstream (inferred)Inferred—
AS28682—Upstream (inferred)Inferred—
AS43061SI-STELKOM Stelkom d.o.o.Upstream (inferred)Inferred—
AS263444—Upstream (inferred)Inferred—

Downstreams (33)

View all →
ASNameRelationshipPathsLast Seen
AS15822—Downstream (inferred)Inferred—
AS21401—Downstream (inferred)Inferred—
AS25059NLB-SI-AS Nova Ljubljanska Banka d.d.Downstream (inferred)Inferred—
AS25467—Downstream (inferred)Inferred—
AS28850—Downstream (inferred)Inferred—
AS29051—Downstream (inferred)Inferred—
AS31687—Downstream (inferred)Inferred—
AS34367BSI-AS Banka SlovenijeDownstream (inferred)Inferred—
AS39727—Downstream (inferred)Inferred—
AS41505—Downstream (inferred)Inferred—
AS41970—Downstream (inferred)Inferred—
AS42473AS-ANEXIA Anexia Cloud Solutions GmbHDownstream (inferred)Inferred—

Registry and network details

Registered holderA1SI-AS A1 Slovenija telekomunikacijske storitve,d.d.
RegisteredYes
Peering policySelective
IRR AS-setAS-A1SI
Registry record last modified
MaintainersRIPE-NCC-END-MNT, A1SI-MNT
Internet exchanges2
Facilities1
Network profile updated

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Data updated . See limitations.