IP address 194.87.251.11

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Overview

LocationCity, region and country where this IP is located.
Prague, CZ
ASNThe autonomous system that announces this IP on the internet.
AS215821 — London Digital Systems LTD
TimezoneThe IANA time zone at this IP's location.
Europe/Prague
NetworkThe routed network block (CIDR) that contains this IP.
194.87.251.0/24
CompanyThe organization this IP is assigned to.
Reliable Communications s.r.o.
Abuse contactWhere to report spam, attacks or other misuse from this IP.
ripe@interlir.com

Associated location

Prague

Czech Republic (CZ)

Powered byIP Geolocation API

City
Prague
District / county
Žižkov
State / province
Prague
Country
Czech Republic
Postal code
130 00
Coordinates
50.08602, 14.45353

Czech Republic

50.08602, 14.45353

© Google Maps

Threat score

5/100 Low risk

Powered byIP Security API

Flags detected

  • AnonymousTraffic from this IP hides its real origin (VPN, proxy or Tor).Not Detected
  • Known AttackerThis IP has been seen in attacks such as brute force, scanning or exploits.Not Detected
  • SpamThis IP has been reported for sending spam.Not Detected
  • TorThis IP is a Tor exit node.Not Detected
  • ProxyThis IP is an open, public or commercial proxy.Not Detected
    Residential ProxyA home or mobile connection resold as a proxy exit.Not Detected
  • BotAutomated traffic such as crawlers or scrapers comes from this IP.Not Detected
    Known Good BotThis bot is a known, legitimate crawler, such as a search engine.Not Detected
  • VPNThis IP belongs to a VPN service.Not Detected
  • Cloud ProviderThis IP belongs to a cloud or hosting provider's data center.Detected
  • Corporate GatewayA shared egress gateway used by a company's network.Not Detected
  • RelayThis IP is a relay exit, such as iCloud Private Relay.Not Detected

Cloud Provider

Detected
Provider Names
London Digital Systems LTD

Abuse contact

Abuse-C Role

ripe@interlir.com

Powered byIP Abuse Contact API

Name
Abuse-C Role
Organization
ORG-NCC1-RIPE
Network
194.87.0.0/16
Country
CZ
Kind
group
Address
GERMANY, Berlin, 10365, Josef-Orlopp-Straße 54
Emails
ripe@interlir.com abuse@relcom.com
Phone numbers
+420 228 880 273

Autonomous system

AS215821

London Digital Systems LTD

Powered byIP to ASN Database

ASN
AS215821
Country
GB
Domain
londondigitalsystems.com
Regional registry
RIPE
Organization
London Digital Systems LTD
Type
Business
Allocated on
2023-12-20

Organization

London Digital Systems LTD

AS215821 londondigitalsystems.com Business GB

Associated company

Reliable Communications s.r.o.

HOSTING · relcom.com

Powered byIP to Company Database

Name
Reliable Communications s.r.o.
Type
Hosting provider
Domain
relcom.com

Network route

194.87.251.0/24

Powered byIP Geolocation API

Hostname
194.87.251.11
Route
194.87.251.0/24
Connection type
—
Anycast
No
CDN
No
CDN provider
—

Time zone

Europe/Prague

2026-10-21 13:31

Powered byTime Zone API

Offset from UTC
1.0
Standard time zone
Central European Standard Time
Standard abbreviation
CET
Daylight saving time
Yes
DST savings (hours)
1
Observing DST now
Yes
Prague

Europe/Prague

UTC1.0

User agent string

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Powered byUser Agent API

  • BrowserClaudeBotver. 1.0
  • EngineClaudeBotver. 1.0
  • Operating systemCloud
  • DeviceRobotAnthropic ClaudeBot
  • ArchitectureUnknown
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Response 
{
  "ip" : "194.87.251.11",
  "hostname" : "194.87.251.11",
  "location" : {
    "district" : "Žižkov",
    "city" : "Prague",
    "locality" : "Prague",
    "zipcode" : "130 00",
    "latitude" : "50.08602",
    "longitude" : "14.45353",
    "continent_code" : "EU",
    "continent_name" : "Europe",
    "country_code2" : "CZ",
    "country_code3" : "CZE",
    "country_name" : "Czech Republic",
    "country_name_official" : "Czech Republic",
    "country_capital" : "Prague",
    "state_prov" : "Prague",
    "state_code" : "CZ-PR",
    "accuracy_radius" : "24.067",
    "confidence" : "low",
    "dma_code" : "",
    "is_eu" : true,
    "country_flag" : "https://ipgeolocation.io/static/flags/cz_64.png",
    "geoname_id" : "6490381",
    "country_emoji" : "🇨🇿"
  },
  "country_metadata" : {
    "tld" : ".cz",
    "languages" : [ "cs", "sk" ],
    "calling_code" : "+420"
  },
  "network" : {
    "route" : "194.87.251.0/24",
    "connection_type" : "",
    "is_anycast" : false,
    "is_cdn" : false,
    "cdn_provider_name" : ""
  },
  "currency" : {
    "code" : "CZK",
    "name" : "Czech Koruna",
    "symbol" : "Kč"
  },
  "asn" : {
    "organization" : "London Digital Systems LTD",
    "country" : "GB",
    "type" : "BUSINESS",
    "domain" : "londondigitalsystems.com",
    "rir" : "RIPE",
    "as_number" : "AS215821",
    "date_allocated" : "2023-12-20"
  },
  "company" : {
    "name" : "Reliable Communications s.r.o.",
    "type" : "HOSTING",
    "domain" : "relcom.com"
  },
  "security" : {
    "threat_score" : 5,
    "is_tor" : false,
    "is_proxy" : false,
    "proxy_provider_names" : [ ],
    "proxy_confidence_score" : 0,
    "proxy_last_seen" : "",
    "is_residential_proxy" : false,
    "is_vpn" : false,
    "vpn_provider_names" : [ ],
    "vpn_confidence_score" : 0,
    "vpn_last_seen" : "",
    "is_relay" : false,
    "relay_provider_name" : "",
    "is_anonymous" : false,
    "is_known_attacker" : false,
    "is_bot" : false,
    "bot_confidence_score" : 0,
    "bot_operator_name" : "",
    "bot_type" : "",
    "is_known_good_bot" : false,
    "bot_last_seen" : "",
    "is_spam" : false,
    "is_cloud_provider" : true,
    "cloud_provider_name" : "London Digital Systems LTD",
    "is_corporate_gateway" : false,
    "corporate_gateway_type" : "",
    "corporate_gateway_provider_name" : ""
  },
  "abuse" : {
    "route" : "194.87.0.0/16",
    "country" : "CZ",
    "name" : "Abuse-C Role",
    "organization" : "ORG-NCC1-RIPE",
    "kind" : "group",
    "address" : "GERMANY, Berlin, 10365, Josef-Orlopp-Straße 54",
    "emails" : [ "ripe@interlir.com", " abuse@relcom.com" ],
    "phone_numbers" : [ "+420228880273" ]
  },
  "time_zone" : {
    "name" : "Europe/Prague",
    "offset" : 1.0,
    "offset_with_dst" : 2.0,
    "current_time" : "2026-10-21 13:31:29.400+0200",
    "current_time_unix" : 1.7925822894E9,
    "current_tz_abbreviation" : "CEST",
    "current_tz_full_name" : "Central European Summer Time",
    "standard_tz_abbreviation" : "CET",
    "standard_tz_full_name" : "Central European Standard Time",
    "is_dst" : true,
    "dst_savings" : 1,
    "dst_exists" : true,
    "dst_tz_abbreviation" : "CEST",
    "dst_tz_full_name" : "Central European Summer Time",
    "dst_start" : {
      "utc_time" : "2026-03-29 TIME 01:00",
      "duration" : "+1.00H",
      "gap" : true,
      "date_time_after" : "2026-03-29 TIME 03:00",
      "date_time_before" : "2026-03-29 TIME 02:00",
      "overlap" : false
    },
    "dst_end" : {
      "utc_time" : "2026-10-25 TIME 01:00",
      "duration" : "-1.00H",
      "gap" : false,
      "date_time_after" : "2026-10-25 TIME 02:00",
      "date_time_before" : "2026-10-25 TIME 03:00",
      "overlap" : true
    }
  },
  "user_agent" : {
    "user_agent_string" : "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
    "name" : "ClaudeBot",
    "type" : "Robot",
    "version" : "1.0",
    "version_major" : "1",
    "device" : {
      "name" : "Anthropic ClaudeBot",
      "type" : "Robot",
      "brand" : "Anthropic",
      "cpu" : "Unknown"
    },
    "engine" : {
      "name" : "ClaudeBot",
      "type" : "Robot",
      "version" : "1.0",
      "version_major" : "1"
    },
    "operating_system" : {
      "name" : "Cloud",
      "type" : "Cloud",
      "version" : "??",
      "build" : "??",
      "version_major" : "??"
    }
  }
}

Evaluation Checklist

Behind the address

What the data tells you about 194.87.251.11.

Who operates 194.87.251.11?

London Digital Systems LTD operates AS215821, the autonomous system announcing this address. The associated company is Reliable Communications s.r.o.; the reported network is 194.87.251.0/24.

View ASN API

Why can its location change?

IP location comes from routing, registry and measurement data. It can shift when London Digital Systems LTD reassigns the block, so treat Prague as an estimate, not a fixed point.

View IP Location API

How do I report abuse?

The listed abuse contact is Abuse-C Role. Include the source IP, timestamps with a timezone, and relevant logs so the contact can investigate.

View Abuse Contact API

For developers

The same data. One API request.

Add IP location, network, and security data to your application.

cURL 
curl --get 'https://api.ipgeolocation.io/v3/ipgeo' \
  --data-urlencode 'apiKey=YOUR_API_KEY' \
  --data-urlencode 'ip=194.87.251.11' \
  --data-urlencode 'include=*'
Response 
{ "ip": "194.87.251.11" }

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Frequently Asked Questions

The latest lookup maps 194.87.251.11 to Prague, Prague, Czech Republic. Geolocation is approximate and should be treated as city/region level guidance.
This page currently shows ASN AS215821 and company Reliable Communications s.r.o.. ASN and company attribution can change as routing and ownership records are updated.
The reported connection type for 194.87.251.11 is not published. This value helps with traffic analytics, abuse prevention, and policy routing decisions.
The current timezone record for 194.87.251.11 is Europe/Prague. Teams commonly use this signal to localize timestamps, notifications, and fraud models.
IP intelligence is dynamic. Routing, ASN ownership, company names, and security posture can change over time, so this page should be treated as a point-in-time lookup for 194.87.251.11.
Use the JSON response on this page for testing, then move to production API workflows with structured fields for geolocation, network, ASN, security, abuse, and timezone data. Read documentation.