AS15518 Circular Informationssysteme GmbH

Company Website:

http://www.circular.de

Looking Glass:

https://bgp.he.net/lg/15518

Country of Origin:

Prefixes Originated (all): 6
Prefixes Originated (v4): 5
Prefixes Originated (v6): 1

Prefixes Announced (all): 6
Prefixes Announced (v4): 5
Prefixes Announced (v6): 1

RPKI Originated Valid (all): 6
RPKI Originated Valid (v4): 5
RPKI Originated Valid (v6): 1

RPKI Originated Invalid (all): 0
RPKI Originated Invalid (v4): 0
RPKI Originated Invalid (v6): 0

BGP Peers Observed (all): 2
BGP Peers Observed (v4): 2
BGP Peers Observed (v6): 2

IPs Originated (v4): 8,192
AS Paths Observed (v4): 714
AS Paths Observed (v6): 686

Average AS Path Length (all): 4.102
Average AS Path Length (v4): 4.111
Average AS Path Length (v6): 4.093

AS15518 IPv4 Peers

ASN	Name
AS8220	COLT Technology Services Group Limited
AS5400	British Telecommunications PLC

AS15518 IPv6 Peers

ASN	Name
AS8220	COLT Technology Services Group Limited
AS5400	British Telecommunications PLC

AS15518 IPv4 Peer Count

AS15518 IPv6 Peer Count

AS15518 IPv4 Prefixes Announced

AS15518 IPv6 Prefixes Announced

AS15518 IPv4 Prefixes Originated

AS15518 IPv6 Prefixes Originated

AS15518 IPv4 Route Propagation

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AS15518 IPv6 Route Propagation

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Prefix	Description	Visibility
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Prefix	Description
212.86.160.0/20	Circular Informationssysteme GmbH
212.86.180.0/22	Circular Informationssysteme GmbH
212.86.188.0/22	Circular Informationssysteme GmbH
213.153.64.0/22	Circular Informationssysteme GmbH
213.153.72.0/22	Circular Informationssysteme GmbH

Prefix	Description	Visibility
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Prefix	Description
2a00:1180::/32	Circular Informationssysteme GmbH

Bogon Prefixes
Prefix	Type	Status

Rank	Description	IPv6	Peer
1	COLT Technology Services Group Limited	X	AS8220
2	British Telecommunications PLC	X	AS5400

Rank	Description	IPv4	Peer
1	COLT Technology Services Group Limited	X	AS8220
2	British Telecommunications PLC	X	AS5400

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RIPE

aut-num: AS15518 as-name: CIRC-AS descr: Schulze-Delitzsch-Str.36 descr: 70565 Stuttgart descr: Germany org: ORG-cIG1-RIPE import: from AS8220 action pref=100; accept ANY import: from AS5400 action pref=100; accept ANY export: to AS8220 announce AS15518 export: to AS5400 announce AS15518 default: to AS5400 action pref=10; networks ANY admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED mnt-by: RIPE-NCC-END-MNT remarks: AS220 COLT Internet remarks: AS5400 BT mnt-by: CIRCULAR-NOC mnt-by: CIRCULAR-NET created: 2002-08-22T16:07:20Z last-modified: 2025-10-24T11:09:21Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************

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