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CIDR Range

63.9.0.0/16

Addresses
65,536
65.5K
Sub-ranges
0+
within this block
PTR Density
0.0%
0 of 65.5K IPs have PTR

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.

76/100
Moderate
How this score is built

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

Geolocation

First and last addresses in 63.9.0.0/16

63.9.0.0/16 runs from 63.9.0.0 to 63.9.255.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 63.0.0.0/12.

Announced prefix
Origin AS
Announcement samples
12,320
Last seen
2026-11-08 18:26:19

Frequently Asked Questions

What is 63.9.0.0/16?

63.9.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 63.9.0.0 to 63.9.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 63.9.0.0/16 network?

The 63.9.0.0/16 range is allocated to Verizon Business and announced via AS701 from United States.

Last updated: 2026-11-08 20:54:06 UTC
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