AS51265
Mass Response Service GmbH
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 3 internet exchanges: LINX LON1: Main, VIX, Peering.cz
AS51265 — global IP footprint
Cities where AS51265 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51265 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 62.240.136.0/24 | 298,010 | 2026-07-27 00:09:53 |
| 62.240.137.0/24 | 261,539 | 2026-07-27 00:09:53 |
| 185.69.244.0/22 | 253,987 | 2026-07-27 00:09:53 |
| 197.211.128.0/18 | 217,092 | 2026-07-27 00:08:54 |
| 62.240.128.0/19 | 210,549 | 2026-07-27 00:08:54 |
| 83.216.48.0/20 | 204,877 | 2026-07-27 00:08:54 |
| 185.44.52.0/22 | 175,261 | 2026-07-27 00:08:54 |
| 83.216.32.0/19 | 165,607 | 2026-07-27 00:08:54 |
| 83.216.32.0/20 | 159,742 | 2026-07-27 00:08:54 |
| 41.66.64.0/18 | 145,642 | 2026-07-27 00:04:24 |
| 193.9.252.0/23 | 143,413 | 2026-07-27 00:04:24 |
| 176.126.39.0/24 | 88,222 | 2026-07-27 00:04:24 |
| 178.157.4.0/22 | 61,649 | 2026-07-27 00:04:04 |
| 193.9.252.0/24 | 49,761 | 2026-07-27 00:04:25 |
| 193.9.253.0/24 | 35,530 | 2026-07-27 00:04:24 |
| 62.240.132.0/23 | 26,718 | 2026-07-27 00:09:51 |
| 62.240.136.0/21 | 18,813 | 2026-07-27 00:08:16 |
| 62.240.134.0/24 | 18,730 | 2026-07-27 00:08:16 |
| 62.240.128.0/22 | 13,910 | 2026-07-27 00:08:16 |
| 83.216.60.0/22 | 9,012 | 2026-07-26 21:45:22 |
| 62.240.135.0/24 | 8,978 | 2026-07-26 21:44:37 |
| 62.240.144.0/21 | 8,767 | 2026-07-26 21:45:22 |
| 83.216.48.0/21 | 8,044 | 2026-07-26 21:45:16 |
| 197.211.189.0/24 | 6,594 | 2026-07-26 21:45:22 |
| 197.211.186.0/24 | 4,708 | 2026-07-26 22:05:13 |
| 62.240.152.0/21 | 3,243 | 2026-07-27 00:02:58 |
Frequently Asked Questions
What is AS51265?
AS51265 is an Autonomous System Number assigned to Mass Response Service GmbH. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS51265 announce?
AS51265 announces 53.0K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Austria.
Who operates AS51265?
AS51265 is operated by Mass Response Service GmbH. The organization is based in Austria. You can view all IP ranges and related ASNs on the organization page.
What country is AS51265 registered in?
AS51265 is registered in Austria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
