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CIDR
/20 · 4.1K IPs
ASN
Level 3 Parent, LLC
Reverse DNS
7-1-36.ear3.Denver1.Level3.net
Last scanned 6 hr ago
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.

81/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
7-1-36.ear3.Denver1.Level3.net
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
3600 s
Reverse DNS last checked
2026-08-24 16:54 UTC

Forward DNS records for 7-1-36.ear3.Denver1.Level3.net

TypeValuePriorityTTL
A 209.244.77.125 172800s
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 209.244.77.125

CIDR range
209.244.64.0/20
IP range (int)
3,522,445,312 — 3,522,449,407
Prefix length
/20
Organization
Level 3 Parent, LLC
ASN
AS3356
ASN name
Level 3 Parent, LLC
Location
Commerce City, Colorado, United States
Coordinates
39.829400, -104.909500
Accuracy radius
20 km
Postal code
80022
Regional Internet Registry
ARIN
Allocated
1998-05-22
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-08-24 05:25:37

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

Announced prefix
Origin AS
Announcement samples
4,366
Last seen
2026-08-24 22:58:37

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 209.244.0.0/16.

Frequently Asked Questions

Who owns 209.244.77.125?

209.244.77.125 is allocated to Level 3 Parent, LLC (AS3356), registered in Commerce City, United States.

Where is 209.244.77.125 located?

The geolocation for 209.244.77.125 maps to Commerce City, 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 209.244.77.125 on?

209.244.77.125 belongs to the 209.244.64.0/20 network block announced by AS3356. This range contains 4,096 addresses.

Does 209.244.77.125 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: 2026-08-24 17:57:22 UTC
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