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CIDR
/24 · 256 IPs
ASN
Fortinet Inc.
Reverse DNS
smtpdx39.fortimailcloud.com
Last scanned 22 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.

86/100
Trusted
How this score is built

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

DNS records

Reverse DNS (PTR)
smtpdx39.fortimailcloud.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
3600 s
Reverse DNS last checked
2026-07-22 04:53 UTC
Forward DNS last checked
2026-07-22 04:53 UTC

Forward DNS records for smtpdx39.fortimailcloud.com

TypeValuePriorityTTL
A 38.21.198.141 172798s
A 38.21.198.142 172800s
A 38.21.198.143 172800s
A 38.21.198.144 172800s
A 38.21.198.145 172800s
A 38.21.198.146 172800s
A 38.21.198.147 172800s
A 38.21.198.148 172800s
A 38.21.198.149 172800s
A 38.21.198.150 172800s
A 38.21.198.151 172800s
A 38.21.198.152 172798s
A 38.21.198.153 172800s
A 38.21.198.154 172800s
A 38.21.198.155 172800s
A 38.21.198.156 172800s
A 38.21.198.157 172799s
A 38.21.198.158 172800s
A 38.21.198.193 172800s
A 38.21.198.194 172800s
A 38.21.198.195 172800s
A 38.21.198.196 172800s
A 38.21.198.197 172800s
A 38.21.198.198 172800s
A 38.21.198.199 172800s
A 38.21.198.200 172800s
A 38.21.198.201 172800s
A 38.21.198.202 172800s
A 38.21.198.203 172800s
A 38.21.198.204 172800s
A 38.21.198.205 172800s
A 38.21.198.206 172800s
A 38.21.198.207 172800s
A 38.21.198.208 172800s
A 38.21.198.209 172800s
A 38.21.198.210 172800s
A 38.21.198.211 172798s
A 38.21.198.212 172800s
A 38.21.198.213 172800s
A 38.21.198.214 172800s
A 38.21.198.215 172798s
A 38.21.198.216 172799s
A 38.21.198.217 172800s
A 38.21.198.218 172800s
A 38.21.198.219 172800s
A 38.21.198.220 172800s
A 38.21.198.221 172800s
A 38.21.198.222 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 38.21.198.143

CIDR range
38.21.198.0/24
IP range (int)
638,961,152 — 638,961,407
Prefix length
/24
Organization
Fortinet Inc.
ASN
AS40934
ASN name
Fortinet Inc.
Location
San Jose, California, United States
Coordinates
37.338800, -121.891600
Accuracy radius
20 km
Postal code
95141
Regional Internet Registry
ARIN
Allocated
1991-04-16
Data source(s)
ipinfo_lite, maxmind_city, maxmind_asn, maxmind_country
Last updated
2026-07-21 04:29:57

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

Announced prefix
Origin AS
Announcement samples
18,886
Last seen
2026-07-23 02:35:02

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 38.21.198.0/23.

Frequently Asked Questions

Who owns 38.21.198.143?

38.21.198.143 is allocated to Fortinet Inc. (AS40934), registered in San Jose, United States.

Where is 38.21.198.143 located?

The geolocation for 38.21.198.143 maps to San Jose, 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 38.21.198.143 on?

38.21.198.143 belongs to the 38.21.198.0/24 network block announced by AS40934. This range contains 256 addresses.

Does 38.21.198.143 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: 2026-07-23 01:40:10 UTC
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