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CIDR
/24 · 256 IPs
ASN
United States Department of Defense (DoD)
Reverse DNS
139-241-74-host.usmc.mil
Last scanned 13 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.

89/100
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)
139-241-74-host.usmc.mil
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
3589 s
Reverse DNS last checked
2026-07-23 10:58 UTC
Forward DNS last checked
2026-07-23 10:58 UTC
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 139.241.74.109

CIDR range
139.241.74.0/24
IP range (int)
2,347,846,144 — 2,347,846,399
Prefix length
/24
Organization
United States Department of Defense DoD
ASN
AS27066
ASN name
United States Department of Defense (DoD)
Location
United States
Coordinates
37.751000, -97.822000
Accuracy radius
1000 km
Regional Internet Registry
ARIN
Allocated
1990-04-08
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-07-09 12:18:33

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

Announced prefix
Origin AS
Announcement samples
17,782
Last seen
2026-07-24 00:09:15

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 139.240.0.0/13.

Frequently Asked Questions

Who owns 139.241.74.109?

139.241.74.109 is allocated to United States Department of Defense DoD (AS27066), registered in United States.

Where is 139.241.74.109 located?

The geolocation for 139.241.74.109 maps to 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 139.241.74.109 on?

139.241.74.109 belongs to the 139.241.74.0/24 network block announced by AS27066. This range contains 256 addresses.

Does 139.241.74.109 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: 2026-07-24 00:29:19 UTC
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