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AS51265

Mass Response Service GmbH

AS51265 is Mass Response Service GmbH (massresponse.com). It announces 52,992 IPv4 addresses in 27 prefixes, and 3 IPv6 prefixes.

Austria· RIPE· allocated 2010-07-06· isp

52,992
IPv4 addresses announced
27
IPv4 prefixes
3
IPv6 prefixes
100.00%
of its routes RPKI-valid
52,992
of its IPv4 geolocated
5
countries

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. Austria43,264 · 81.64%
  2. Italy4,608 · 8.70%
  3. United Kingdom2,816 · 5.31%
  4. Germany1,280 · 2.42%
  5. Switzerland1,024 · 1.93%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
MASSRESPONSE-AS
name
Mass Response Service GmbH
org
ORG-MRSG2-RIPE
org name
Mass Response Service GmbH
org address
Donau-City-Straße 7, DC Tower 1, 45 Stock, 1220, Vienna, AUSTRIA
org country
AT
country
AT
source
ripe
status
ASSIGNED
created
2010-07-06
updated
2026-06-22
descr
Mass Response Service GmbH / DC Tower 1, 38. Stock / Donau-City-Stra�e 7, 1220 Wien / / ====================================================================== / https://www.massresponse.com/ / Abuse issues abuse@massresponse.com / Operational issues noc@massresponse.com / Peering requests noc@massresponse.com / Other info https://www.peeringdb.com/net/12246 / ======================================================================
remarks
Upstreams / Colt / Next Layer / Inter.Link / Aristo / IXP / Peering.cz / VIX / LINX (LON1) / Public Peering / ACOnet / Vienna Internet eXchange & ACOnet services / Twitch / Trusted Network / OVHcloud / Microsoft / Hurricane Electric / Meta Platforms Inc / Valve Corporation / Amazon.com / SuperNetwork s.r.o. / i3D.net / Private Peering / Netflix / Meta Platforms Inc / Amazon.com / Google LLC / Akamai Technologies, Inc
maintainer
RIPE-NCC-END-MNT|MASSRESPONSE-MNT
abuse name
Mass Response abuse handling
abuse phone
+43 1 2702825
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.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

27 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
41.66.64.0/18Austriavalid172026-10-02
62.240.128.0/19Austriavalid172026-10-02
62.240.128.0/22Austriavalid42026-10-02
62.240.132.0/23Austriavalid42026-10-02
62.240.134.0/24Austriavalid42026-10-02
62.240.135.0/24Italyvalid172026-10-02
62.240.136.0/21Austriavalid42026-10-02
62.240.136.0/24Austriavalid172026-10-02
62.240.137.0/24Austriavalid172026-10-02
62.240.144.0/21Italyvalid172026-10-02
62.240.152.0/21Austriavalid42026-10-02
83.216.32.0/19Austriavalid172026-10-02
83.216.32.0/20Austriavalid172026-10-02
83.216.48.0/20United Kingdomvalid172026-10-02
83.216.48.0/21United Kingdomvalid172026-10-02
83.216.60.0/22Italyvalid172026-10-02
176.126.39.0/24Austriavalid172026-10-02
178.157.4.0/22Austriavalid172026-10-02
185.44.52.0/22Austriavalid172026-10-02
185.69.244.0/22Austriavalid172026-10-02
193.9.252.0/23Austriavalid172026-10-02
193.9.252.0/24Austriavalid172026-10-02
193.9.253.0/24Austriavalid172026-10-02
197.211.128.0/18Austriavalid172026-10-02
197.211.185.0/24Switzerlandvalid172026-10-02
197.211.186.0/24Germanyvalid172026-10-02
197.211.189.0/24Italyvalid172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

3 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2a04:9540::/29Austriavalid202026-10-02
2a04:9540::/30Austriavalid102026-10-02
2a04:9544::/30Austriavalid102026-10-02
00 · Evaluate

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01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
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