IP Lookup
Look up IP address information.
IP addresses carry geolocation, ISP, and network ownership data useful for security analysis, analytics debugging, and infrastructure troubleshooting. Utilitoo's IP Lookup returns country, region, city, coordinates, timezone, ISP, organization, and ASN details for any public IP address.
Security teams investigate suspicious login origins, developers debug geo-targeted features, and support staff verify customer-reported connection issues. Click Use my IP to look up your own address instantly.
Enter an IPv4 or IPv6 address and click Lookup. Results display in a clean grid with all available fields. Pair with DNS Lookup for hostname resolution or CIDR Calculator for network range analysis.
Lookups use a public geolocation service via Utilitoo's server. IP addresses are not stored. Free for developers, analysts, and network professionals.
IP Lookup resolves a public IPv4 or IPv6 address to network metadata such as ISP, organization, and approximate location. It helps developers and operators interpret log lines, firewall rules, and abuse reports without switching to a separate network toolkit. Results reflect third-party geolocation databases that update periodically - treat country and city as hints, not legal proof of origin.
Common use cases
- Checking whether an IP belongs to a cloud provider, VPN, or residential ISP during abuse triage.
- Correlating visitor IPs from server logs with geographic region for analytics debugging.
- Verifying DNS resolution output when investigating misconfigured A or AAAA records.
- Learning basic network context for security training labs and CTF exercises.
- Confirming whether traffic originates from a known hosting ASN during incident response.
Tips & common mistakes
IP geolocation is approximate - city-level accuracy varies by provider and IP type. Private ranges (10.x, 192.168.x) are not routable on the public internet. Utilitoo's lookup uses a server API for this tool specifically, unlike most browser-local utilities - avoid querying sensitive internal IPs if your policy restricts external lookups. Pair with DNS Lookup and HTTP Header Viewer when tracing a full request path.
Common errors
- Unexpected output from IP Lookup - double-check input format, character encoding, and whether the source data was truncated when pasted.
- Browser limits - very large inputs may slow or freeze the tab; split the data into smaller chunks if performance degrades.
How to use
- Enter IP address.
- View lookup results.
Frequently Asked Questions
How accurate is IP geolocation?▼
City-level accuracy is typical. Results reflect the geolocation database used by the lookup service.
Can I look up my own IP?▼
Yes. Click Use my IP to auto-detect and look up your current public address.
Does it support IPv6?▼
Yes. Both IPv4 and IPv6 addresses are supported.
Private IP addresses?▼
Private ranges like 10.x and 192.168.x are valid but won't have public geolocation data.
Is my query stored?▼
No. Utilitoo does not store IP lookup history.
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