41.66.64.0

Vienna · Austria · Mass Response Service GmbH

Autonomous system: AS51265
Country: AT
Legacy classification score: Not a probability

IP address summary

IP address: 41.66.64.0
ASN: AS51265
Network operator: Mass Response Service GmbH
ISP: Mass Response Service GmbH
Containing network profile: 41.66.0.0/16
Operator category: Home ISP

The containing profile is the nearest published aggregate. It is not a registry allocation or BGP ownership record.

Public ASN reference

Reference ASN: AS51265
Source label: MASSRESPONSE-AS Mass Response Service GmbH
Reference interval: 41.66.64.0 to 41.66.127.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS51265. An interval is not necessarily a BGP prefix or registered allocation. It does not establish geolocation or ownership.

IPtoASN source Reference methodology

IP geolocation

World map with country boundaries — Approximate network location; not a device positionNatural Earth map data

Country: Austria
City: Vienna
Region: Vienna
Postal code: Not supplied
Timezone: Europe/Vienna
Local time: 2026-11-09 03:27:10
Approximate coordinates: 48.223, 16.363

Network-level coordinates do not identify a precise user or device location. How geolocation works

VPN, proxy and network signals

VPNNot listed

ProxyNot listed

TorNot classified

HostingNot classified

MobileNot classified

Legacy classification score: 0

This response predates the evidence-based model.

Read exact field definitions

ASN and network operator

AS51265 profile

Organization: Mass Response Service GmbH
ASN domain: massresponse.com
Operator type: Home ISP

The ASN organization can differ from the organization using an individual address.

Network registration

Matching record range: 41.66.64.0/18
Registered network name: AT-MASSRESPONSE
Registration source: AFRINIC WHOIS
Company: Mass Response Service GmbH
Usage type: residential
Company website: massresponse.com

Registration and company fields describe this source record. They can differ from the ASN operator and from live routing announcements.

Abuse contact

Contact name: Florian Parnigoni
Matching record range: 41.66.64.0/18
Abuse email: noc@massresponse.com
Phone: tel:+43-1-2702825
Postal address: Mass Response Service GmbH, DC Tower, Donau-City-Straße 7, Vienna 1220, Austria
Contact country: Austria

This contact is attached to the network record. Include the source IP, UTC timestamps and relevant logs when reporting abuse.

Actual API response

Open JSON

41.66.64.0 · live response

{
  "ip": "41.66.64.0",
  "isp": {
    "asn": "AS51265",
    "org": "Mass Response Service GmbH",
    "isp": "Mass Response Service GmbH"
  },
  "location": {
    "country": "Austria",
    "country_code": "AT",
    "city": "Vienna",
    "state": "Vienna",
    "zipcode": "",
    "latitude": 48.22274159981333,
    "longitude": 16.36324200912814,
    "timezone": "Europe/Vienna",
    "localtime": "2026-11-09T03:27:10"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}