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Reserved / special-use address
"This network" (0.0.0.0/8) — used by hosts to refer to themselves before they have an assigned IP address. These addresses are not routable on the public Internet and are excluded from search-engine indexing.
ASN
—
No ASN data
Reverse DNS
—
No PTR record
Blocklisted
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Scanning blocklists
Network Allocation for 0.0.0.172
- CIDR range
- 0.0.0.0/8
- IP range (int)
- 0 — 16,777,215
- Prefix length
- /8
- Regional Internet Registry
- IANA
- Data source(s)
- iana_special
- Last updated
- 2026-04-16 09:08:02
Frequently Asked Questions
Who owns 0.0.0.172?
0.0.0.172 is allocated to an unknown organization.
What network is 0.0.0.172 on?
0.0.0.172 belongs to the 0.0.0.0/8 network block. This range contains 16,777,216 addresses.
Does 0.0.0.172 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 14:21:23 UTC
