Circular Informationssysteme GmbH
AS15518 is Circular Informationssysteme GmbH (circular.de). It announces 7,936 IPv4 addresses in 5 prefixes, and 1 IPv6 prefixes.
Germany· RIPE· allocated 2000-07-25· isp
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Germany7,936 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CIRC-AS
- name
- Circular Informationssysteme GmbH
- org
- ORG-cIG1-RIPE
- org name
- Circular Informationssysteme GmbH
- org address
- Schulze-Delitzsch-Strasse 36, D-70565, Stuttgart, GERMANY
- org country
- DE
- country
- DE
- source
- ripe
- status
- ASSIGNED
- created
- 2002-08-22
- updated
- 2025-10-24
- descr
- Schulze-Delitzsch-Str.36 / 70565 Stuttgart / Germany
- remarks
- AS220 COLT Internet / AS5400 BT
- maintainer
- RIPE-NCC-END-MNT|CIRCULAR-NOC|CIRCULAR-NET
- abuse name
- CIRCULAR GUARDIAN
- abuse email
- guardian@circular.net
- abuse phone
- +49 711 78717 29
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 0.01%
- None here
- None here
- None here
- None here
- None here
- Hosting IP5,88874.19%
- None here
- None here
- None here
- None here
- 0.01%
- 0.03%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2a00:1180::/32 | Germany | valid | 20 | 2026-10-02 |
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