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WorldIP.io
CIDR
/21 · 2.0K IPs
ASN
WiscNet
Reverse DNS
pstest.messmerschools.org
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.

85/100
Trusted
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
mail.messmerhigh.com
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
14400 s
Reverse DNS last checked
2026-10-30 20:10 UTC

Forward DNS records for mail.messmerhigh.com

TypeValuePriorityTTL
A 216.56.4.181 — 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.

Domains hosted

as of 2026-10-30 UTC

2

Registrable domains (like example.com) with at least one name resolving to this IP — updated daily from issued.live's DNS data.

Domain data provided by issued.live — for full details visit https://issued.live/pricing

Reverse DNS history

How this IP's reverse DNS (PTR) has changed over time, from our scans.

This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.

Reverse-DNS changes between Oct 28, 2026 and Oct 30, 2026 were not recorded; the current PTR is shown from its earliest retained observation.

  1. mail.messmerhigh.com — since at least Oct 30, 2026 → present
  2. pstest.messmerschools.org — Oct 28, 2026 → Oct 30, 2026
  3. mpdcam.messmerschools.org — Oct 28, 2026 → Oct 28, 2026
  4. destiny.messmerschools.org — Oct 27, 2026 → Oct 28, 2026
  5. roseblogs.messmerschools.org — Oct 26, 2026 → Oct 27, 2026
  6. terminal.messmerhigh.com — Oct 25, 2026 → Oct 26, 2026
  7. advancement.messmerschools.org — Oct 21, 2026 → Oct 25, 2026
  8. roseblogs.messmerschools.org — Oct 18, 2026 → Oct 21, 2026
  9. destiny.messmerschools.org — Oct 17, 2026 → Oct 18, 2026
  10. advancement.messmerschools.org — Oct 16, 2026 → Oct 17, 2026
  11. login.messmerschools.org — Oct 14, 2026 → Oct 16, 2026
  12. terminal.messmerhigh.com — Oct 12, 2026 → Oct 14, 2026
  13. login.messmerschools.org — Oct 11, 2026 → Oct 12, 2026
  14. terminal.messmerhigh.com — Oct 9, 2026 → Oct 11, 2026
  15. destiny.messmerschools.org — Oct 8, 2026 → Oct 9, 2026
  16. destiny.messmerhigh.com — Oct 7, 2026 → Oct 8, 2026
  17. advancement.messmerschools.org — Oct 6, 2026 → Oct 7, 2026
  18. mail.messmerhigh.com — Oct 4, 2026 → Oct 6, 2026
  19. messmerschools.org — Oct 2, 2026 → Oct 4, 2026
  20. terminal.messmerhigh.com — Sep 30, 2026 → Oct 2, 2026
  21. messmerhigh.com — Sep 30, 2026 → Sep 30, 2026
  22. destiny.messmerhigh.com — Sep 28, 2026 → Sep 30, 2026
  23. powerschool.messmerhigh.com — Sep 26, 2026 → Sep 28, 2026
  24. messmerschools.org — Sep 24, 2026 → Sep 26, 2026
  25. destiny.messmerhigh.com — Aug 23, 2026 → Sep 24, 2026
  26. mpdcam.messmerschools.org — Aug 16, 2026 → Aug 23, 2026

Network Allocation for 216.56.4.181

CIDR range
216.56.0.0/21
IP range (int)
3,627,548,672 — 3,627,550,719
Prefix length
/21
Organization
WiscNet
ASN
AS2381
ASN name
WiscNet
Location
Cottage Grove, Wisconsin, United States
Coordinates
43.075700, -89.203000
Accuracy radius
100 km
Postal code
53527
Regional Internet Registry
ARIN
Allocated
1998-08-26
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-10-29 08:51:05

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

Announced prefix
Origin AS
Announcement samples
20,570
Last seen
2026-10-30 22:28:42

Frequently Asked Questions

Who owns 216.56.4.181?

216.56.4.181 is allocated to WiscNet (AS2381), registered in Cottage Grove, United States.

Where is 216.56.4.181 located?

The geolocation for 216.56.4.181 maps to Cottage Grove, 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 216.56.4.181 on?

216.56.4.181 belongs to the 216.56.0.0/21 network block announced by AS2381. This range contains 2,048 addresses.

Does 216.56.4.181 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: 2026-10-29 12:01:43 UTC
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