206208 looking glass

AS5520 Universitaet zu Koeln 🇩🇪 DE

Announcing 7 prefixes, seen at the RIS collectors.

IPv4 prefixes
6
68,096 (266 × /24)
IPv6 prefixes
1
8 × /32
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS5520
Name
Universitaet zu Koeln
Organisation
Universitaet zu Koeln
Country
🇩🇪 DE
RIR
RIPENCC
Allocated
1996-01-23

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

3 valid (42.9%) 0 invalid (0.0%) 4 no ROA (57.1%)

Whois

Fetched from whois.ripe.net

as-block:       AS5377 - AS5535
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:22Z
last-modified:  2018-11-22T15:27:22Z
source:         RIPE

aut-num:        AS5520
abuse-c:        IUZK1-RIPE
as-name:        UNI-KOELN
org:            ORG-UzK1-RIPE
import:         from AS8422 action pref=75; accept AS8422 AS13282
export:         to AS8422 announce AS5520
default:        to AS8422
admin-c:        IUZK1-RIPE
tech-c:         IUZK1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
tech-c:         SH13036-RIPE
mnt-by:         AS5520-MNT
created:        2002-02-04T14:45:39Z
last-modified:  2022-07-26T10:39:33Z
source:         RIPE # Filtered

organisation:   ORG-UzK1-RIPE
org-name:       Universitaet zu Koeln
country:        DE
reg-nr:         Not Applicable
org-type:       LIR
address:        Weyertal 121
address:        50931
address:        Koeln
address:        GERMANY
phone:          +4922147089555
admin-c:        SH13036-RIPE
admin-c:        GB24861-RIPE
tech-c:         SH13036-RIPE
abuse-c:        AR14768-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS5520-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5520-MNT
created:        2010-11-10T10:28:58Z
last-modified:  2026-05-13T07:33:00Z
source:         RIPE # Filtered

role:           ITCC Universitaet zu Koeln
address:        Universitaet zu Koeln
address:        ITCC, Abteilung Netzwerk-Infrastruktur
address:        Weyertal 121
address:        50931 Koeln
nic-hdl:        IUZK1-RIPE
mnt-by:         AS5520-MNT
created:        2022-07-26T10:23:31Z
last-modified:  2022-07-26T10:26:39Z
source:         RIPE # Filtered
abuse-mailbox:  abuse@uni-koeln.de
phone:          +49 221 470-89555

person:         Sebastian Hagedorn
address:        Universit�t zu K�ln
address:        ITCC
address:        Weyertal 121
address:        D-50931 K�ln
address:        Germany
phone:          +49 221 470 89578
nic-hdl:        SH13036-RIPE
mnt-by:         AS5520-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2026-08-27T12:14:55Z
source:         RIPE # Filtered