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CIDR
/26 · 64 IPs
ASN
Comcast Cable Communications, LLC
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 71.205.103.20

CIDR range
71.205.103.0/26
IP range (int)
1,204,643,584 — 1,204,643,647
Prefix length
/26
Organization
Comcast Cable Communications, LLC
ASN
AS7922
ASN name
Comcast Cable Communications, LLC
Location
Denver, Colorado, United States
Coordinates
39.903800, -104.941900
Accuracy radius
20 km
Postal code
80233
Regional Internet Registry
ARIN
Allocated
2005-07-27
Data source(s)
maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
Last updated
2026-07-11 09:21:18

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

Announced prefix
Origin AS
Announcement samples
5,705
Last seen
2026-07-18 11:59:41

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 71.192.0.0/12.

Frequently Asked Questions

Who owns 71.205.103.20?

71.205.103.20 is allocated to Comcast Cable Communications, LLC (AS7922), registered in Denver, United States.

Where is 71.205.103.20 located?

The geolocation for 71.205.103.20 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 71.205.103.20 on?

71.205.103.20 belongs to the 71.205.103.0/26 network block announced by AS7922. This range contains 64 addresses.

Does 71.205.103.20 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: 2026-07-18 09:05:34 UTC
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