Network operator associated with ASN/IP network resources
Circular Informationssysteme GmbH
Circular Informationssysteme GmbH has public ASN/IP network-resource records in Germany, including AS15518; the record also shows 12 network relationships.
At a glance
- Autonomous system numberLinked with AS15518High confidence
- Relationships12 recorded network relationshipsMedium confidence
Basic information
- Display nameCircular Informationssysteme GmbHHigh confidence
- Legal nameCircular Informationssysteme GmbHHigh confidence
- Legal typePrivate companyHigh confidence
- Registration jurisdictionGermanyHigh confidence
- HQ countryGermanyHigh confidence
- Directory categoryCompanyHigh confidence
- AliasesCIRC-AS Circular Informationssysteme GmbHMedium confidence
- Last updatedJun 18, 2026High confidence
Locations
- Geography scopeGermanyHigh confidence
- ASN/IP network resourcesGermanyMedium confidence
Network identity
- Autonomous system numberAS15518High confidence
Which networks it connects with · 12
- Downstream network4 additional downstream network relationships remain without an identified counterparty network.Medium confidence
Upstream network · 2
- Counterparty networkCOLT COLT Technology Services Group Limited · COLT COLT Technology Services Group Limited is recorded as an upstream or transit network. · Relationship context for this public directory object.High confidence
- Counterparty networkBT British Telecommunications PLC · BT British Telecommunications PLC is recorded as an upstream or transit network. · Relationship context for this public directory object.High confidence
Downstream network · 6
- Counterparty networkCOLT COLT Technology Services Group Limited · COLT COLT Technology Services Group Limited is recorded as a downstream network. · Relationship context for this public directory object.High confidence
- Counterparty networkCORE-BACKBONE Core-Backbone GmbH · CORE-BACKBONE Core-Backbone GmbH is recorded as a downstream network. · Relationship context for this public directory object.Medium confidence
- Counterparty networkBT British Telecommunications PLC · BT British Telecommunications PLC is recorded as a downstream network. · Relationship context for this public directory object.High confidence
- Counterparty networkAS5400 · AS5400 is recorded as a downstream network.High confidence
- Counterparty networkAS8220 · AS8220 is recorded as a downstream network.High confidence
- Counterparty networkAS33891 · AS33891 is recorded as a downstream network.Medium confidence
Peer network · 2
- Counterparty networkAS5400 · The two networks have a direct traffic-exchange relationship record.Medium confidence
- Counterparty networkAS8220 · The two networks have a direct traffic-exchange relationship record.Medium confidence
Source basis
- RIPE NCC member directory recordCircular Informationssysteme GmbH appears in the public member directory maintained by RIPE NCC. The regional Internet registry's member record lists Germany as the member's country; it does not verify the member's headquarters or place of incorporation.High confidence
- RIPE NCC member detail pageThe RIPE NCC member detail page provides address and contact information, plus context on the areas served, for Circular Informationssysteme GmbH.High confidence
- Public network recordRIPEstat public network contextHigh confidence
How to read these connections
- Relationship clarityThe page records 12 network relationships, but some counterparties are still not identified by name or ASN.Medium confidence