Skip to main content
CIDR
/21 · 2.0K IPs
ASN
Isomedia, Inc.
Reverse DNS
mail.slivka.com
Last scanned 1 days 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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
mail.slivka.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
10000 s
Reverse DNS last checked
2026-07-18 17:59 UTC
Forward DNS last checked
2026-07-18 17:59 UTC

Forward DNS records for mail.slivka.com

TypeValuePriorityTTL
A 40.104.39.50 166090s
A 52.96.109.146 144886s
A 52.96.111.18 144886s
A 52.96.111.98 169635s
A 52.96.113.130 172732s
A 52.96.113.146 172800s
A 52.96.113.162 165319s
A 52.96.113.194 172800s
A 52.96.113.210 172732s
A 52.96.119.98 165319s
A 52.96.121.2 172800s
A 52.96.121.34 172800s
A 52.96.121.50 172800s
A 52.96.157.146 169465s
A 52.96.163.50 169465s
A 52.96.164.226 166454s
A 52.96.164.242 172800s
A 52.96.165.18 165319s
A 52.96.165.2 172732s
A 52.96.166.34 172800s
A 52.96.179.226 144886s
A 52.96.182.114 169635s
A 52.96.190.226 169465s
A 52.96.191.210 169465s
A 52.96.223.66 166090s
A 52.96.79.162 169465s
A 52.96.79.2 169465s
A 52.96.79.210 169465s
A 52.96.79.82 169465s
A 52.96.88.66 169635s
A 52.96.89.178 166090s
A 52.96.90.34 169635s
A 52.96.91.34 172732s
A 52.96.91.50 165319s
A 52.96.92.18 166090s
A 52.97.101.194 144886s
AAAA 2603:1036:207:458::2 169635s
AAAA 2603:1036:301:3031::2 166090s
AAAA 2603:1036:301:3034::2 166090s
AAAA 2603:1036:301:3037::2 169465s
AAAA 2603:1036:301:303d::2 169465s
AAAA 2603:1036:301:3041::2 166090s
AAAA 2603:1036:301:4010::2 169465s
AAAA 2603:1036:301:4013::2 169465s
AAAA 2603:1036:302:4159::2 169635s
AAAA 2603:1036:302:415b::2 144886s
AAAA 2603:1036:302:415f::2 169635s
AAAA 2603:1036:302:4836::2 144886s
AAAA 2603:1036:302:4837::2 144886s
AAAA 2603:1036:302:505a::2 144886s
AAAA 2603:1036:302:880::2 169635s
AAAA 2603:1036:308:200e::2 172732s
AAAA 2603:1036:308:281b::2 165319s
AAAA 2603:1036:308:281c::2 165319s
AAAA 2603:1036:308:281d::2 172800s
AAAA 2603:1036:308:2821::2 172732s
AAAA 2603:1036:308:2822::2 166454s
AAAA 2603:1036:308:2826::2 166454s
AAAA 2603:1036:308:2828::2 172732s
AAAA 2603:1036:308:2829::2 166454s
AAAA 2603:1036:308:282a::2 172732s
AAAA 2603:1036:308:282b::2 172800s
AAAA 2603:1036:308:282e::2 165319s
AAAA 2603:1036:308:2835::2 172800s
AAAA 2603:1036:5:180d::2 169465s
AAAA 2603:1036:5:445::2 166090s
AAAA 2603:1036:5:447::2 169465s
AAAA 2603:1036:5:450::2 169465s
AAAA 2603:1036:903:38::e 169465s
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 64.38.133.178

CIDR range
64.38.128.0/21
IP range (int)
1,076,264,960 — 1,076,267,007
Prefix length
/21
Organization
Isomedia, Inc.
ASN
AS18530
ASN name
Isomedia, Inc.
Location
Medford, Oregon, United States
Coordinates
42.339400, -122.847500
Accuracy radius
200 km
Postal code
97504
Regional Internet Registry
ARIN
Allocated
2000-02-17
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-07-11 09:20:34

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

Announced prefix
Origin AS
Announcement samples
5,711
Last seen
2026-07-18 19:44:42

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 64.38.128.0/17.

Frequently Asked Questions

Who owns 64.38.133.178?

64.38.133.178 is allocated to Isomedia, Inc. (AS18530), registered in Medford, United States.

Where is 64.38.133.178 located?

The geolocation for 64.38.133.178 maps to Medford, 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 64.38.133.178 on?

64.38.133.178 belongs to the 64.38.128.0/21 network block announced by AS18530. This range contains 2,048 addresses.

Does 64.38.133.178 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 09:08:15 UTC
Share