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CIDR
/20 · 4.1K IPs
ASN
CITY AND COUNTY OF DENVER
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

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.

76/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 169.133.10.100

CIDR range
169.133.0.0/20
IP range (int)
2,844,065,792 — 2,844,069,887
Prefix length
/20
Organization
CITY AND COUNTY OF DENVER
ASN
AS18815
ASN name
CITY AND COUNTY OF DENVER
Location
Denver, Colorado, United States
Coordinates
39.704400, -105.002300
Accuracy radius
10 km
Postal code
80223
Regional Internet Registry
ARIN
Allocated
1994-11-02
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-21 04:09:09

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
6,410
Last seen
2026-07-23 00:45:44

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 New Allocation US

See the full history for 169.132.0.0/14.

Frequently Asked Questions

Who owns 169.133.10.100?

169.133.10.100 is allocated to CITY AND COUNTY OF DENVER (AS18815), registered in Denver, United States.

Where is 169.133.10.100 located?

The geolocation for 169.133.10.100 maps to Denver, United States based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 169.133.10.100 on?

169.133.10.100 belongs to the 169.133.0.0/20 network block announced by AS18815. This range contains 4,096 addresses.

Does 169.133.10.100 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Last updated: 2026-07-22 02:41:02 UTC
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