AS15518 — circular Informationssysteme
AS Name: CIRC-AS
Description: Schulze-Delitzsch-Str.36 70565 Stuttgart Germany
Organization: ORG-cIG1-RIPE
Registry: 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: ****************************
Direct Membership
Macros that directly list AS15518 as a member:
AS-SET-CIRCULAR(1 members)
AS-BT6(19 members)
AS174:AS-COGC-006(45 members)
AS-BT-DE(53 members)
AS-COLTDE(350 members)
AS8220:AS-COLTDE(361 members)
AS-LEVEL3-ORIGINS-EU(7728 members)
Expanded Membership
All macros containing AS15518 (directly or via nested macros): 227
Show 100 macros
AS-SET-CIRCULAR(1 ASNs)
AS174:AS-COGC-006(45 ASNs)
AS-BT-DE(52 ASNs)
AS-COLTDE(559 ASNs)
AS8220:AS-COLTDE(725 ASNs)
AS-BT-EU(755 ASNs)
AS-CONCERT(755 ASNs)
AS-CONCERTEU(755 ASNs)
AS5400:AS-BTGF(755 ASNs)
AS174:AS-COGENT(1,618 ASNs)
AS-BT6(2,741 ASNs)
AS-COLTEU(3,133 ASNs)
AS8220:AS-COLTEU(3,155 ASNs)
AS-COLT(3,372 ASNs)
AS-LEVEL3-IPV6(3,475 ASNs)
AS-IBSCUST(3,862 ASNs)
AS8220:AS-COLT(3,925 ASNs)
AS-SEABONECUSTIT(4,379 ASNs)
AS-CLARANETFR-PEERINGS(4,820 ASNs)
AS-LEVEL3-ORIGINS-EU(7,728 ASNs)
AS-LEVELTHREEEU(7,728 ASNs)
AS2914:AS-SA-V6(14,359 ASNs)
AS2914:AS-SA(14,363 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-CIXP(24,509 ASNs)
AS30781:AS-JAGUAR-PEERING-CIXP(27,405 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SWISS-IX(28,564 ASNs)
AS30781:AS-JAGUAR-PEERING-SWISS-IX(31,389 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-EQUINIX-PA(34,681 ASNs)
AS30781:AS-JAGUAR-PEERING-EQUINIX-PA(37,230 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-FRANCE-IX-MARSEILLE(44,422 ASNs)
AS30781:AS-JAGUAR-PEERING-FRANCE-IX-MARSEILLE(46,036 ASNs)
AS2914:AS-US-V6(52,836 ASNs)
AS2914:AS-US(53,991 ASNs)
AS-TOPIX-RS(57,252 ASNs)
AS-SET-INEX-RS(60,298 ASNs)
AS-BCIX-RS(61,123 ASNs)
AS16374:AS-BCIX-RS(61,123 ASNs)
AS-SET-INEX-CONNECTED(67,097 ASNs)
AS-UAEIX(67,297 ASNs)
AS61374:AS-UAEIX(67,297 ASNs)
AS2914:AS-ASIA-V6(68,905 ASNs)
AS-SEABONECUSTEU(69,169 ASNs)
AS-NETIX-INT(69,913 ASNs)
AS43380:AS-DTEL-IX(69,913 ASNs)
AS-KIVIX(69,914 ASNs)
AS52055:AS-NETIX-GR(69,958 ASNs)
AS-SIX(70,009 ASNs)
AS-UBNIX(70,042 ASNs)
AS-GLOBAL-IX(70,222 ASNs)
AS-EPIX-LOCAL(70,298 ASNs)
AS-EPIX(70,299 ASNs)
AS56584:AS-SET-INTERIX-RS(70,331 ASNs)
AS17645:AS-NTTS(70,764 ASNs)
AS17645:AS-NTTS-IP(70,764 ASNs)
AS2914:AS-ASIA(70,764 ASNs)
AS-NETIX-NET(71,038 ASNs)
AS-IU-CL(71,146 ASNs)
AS-TSUA-PARITY(71,146 ASNs)
AS-UAIX(71,146 ASNs)
AS-UDC2UTEL(71,146 ASNs)
AS25229:AS-PARITY(71,150 ASNs)
AS-KIKE(71,185 ASNs)
AS21011:AS-PEERS-UA(71,230 ASNs)
AS21011:AS-UA(71,230 ASNs)
AS56584:AS-INTERIX(71,301 ASNs)
AS-SEABONE(71,409 ASNs)
AS3320:AS-DTAG-V6(71,426 ASNs)
AS-ROMANIA(71,783 ASNs)
AS-DECIX-MAD(71,930 ASNs)
AS48793:AS-DECIX-MAD(71,930 ASNs)
AS-UAEIX-V6(71,954 ASNs)
AS61374:AS-UAEIX-V6(71,954 ASNs)
AS-INTERLANRO(72,156 ASNs)
AS43289:AS-PEERS(72,157 ASNs)
AS-PEERINGCZ-RS(72,214 ASNs)
AS-DECIX-PMO-V6(72,294 ASNs)
AS25083:AS-DECIX-PMO-V6(72,294 ASNs)
AS-DECIX-PMO(72,297 ASNs)
AS25083:AS-DECIX-PMO(72,297 ASNs)
AS29535:AS-TPIX(72,365 ASNs)
AS-DTAG(72,392 ASNs)
AS3320:AS-DTAG(72,392 ASNs)
AS-DECIX-DUS(73,592 ASNs)
AS56890:AS-DECIX-DUS(73,592 ASNs)
AS-EBONE(73,672 ASNs)
AS-ST1-UPSTREAMS(73,733 ASNs)
AS-DECIX-HAM(73,753 ASNs)
AS-WORKIX(73,753 ASNs)
AS43252:AS-DECIX-HAM(73,753 ASNs)
AS-DECIX-MRS(73,755 ASNs)
AS20717:AS-DECIX-MRS(73,755 ASNs)
AS-DECIX-IST-V6(73,807 ASNs)
AS20715:AS-DECIX-IST-V6(73,807 ASNs)
AS-DECIX-IST(73,942 ASNs)
AS20715:AS-DECIX-IST(73,942 ASNs)
AS-PL-IX(74,048 ASNs)
AS-PLIX(74,048 ASNs)
AS-SWISSIX-RS(75,248 ASNs)
AS42476:AS-SWISSIX(75,248 ASNs)
AS6881:AS-NIXCZ-CLIENTS(75,302 ASNs)
... and 127 more
Upstream AS Paths
18 unique paths, avg length 2.1
AS Looking Glass
Upstream paths (matching graph above)
AS15518 IPv4 Address Subnets (5)
| 212.86.160.0/20 | 🇩🇪 DE | circular Informationssysteme GmbH | CIRC-AS |
| 212.86.180.0/22 | 🇩🇪 DE | circular Informationssysteme GmbH | CIRC-AS |
| 212.86.188.0/22 | 🇩🇪 DE | circular Informationssysteme GmbH | CIRC-AS |
| 213.153.64.0/22 | 🇩🇪 DE | circular Informationssysteme GmbH | CIRC-AS |
| 213.153.72.0/22 | 🇩🇪 DE | circular Informationssysteme GmbH | CIRC-AS |
AS15518 IPv6 Address Subnets (1)
| 2a00:1180::/32 | 🇩🇪 DE | IPv6 allocation circular Informationssysteme GmbH | CIRC-AS |