128.172.22.111
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.
- Baseline (neutral) 65
- Long-established allocation (40y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
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.
- no PTR — Sep 28, 2026 → present
- baneproctest.vcu.edu — Sep 27, 2026 → Sep 28, 2026
- enact.cctr.vcu.edu — Sep 25, 2026 → Sep 27, 2026
- baneproctest.vcu.edu — Aug 24, 2026 → Sep 25, 2026
- no PTR — Aug 19, 2026 → Aug 24, 2026
- baneproctest.vcu.edu — Aug 18, 2026 → Aug 19, 2026
- enact.cctr.vcu.edu — Jun 16, 2026 → Aug 18, 2026
- baneproctest.vcu.edu — Jun 14, 2026 → Jun 16, 2026
- enact.cctr.vcu.edu — Jun 12, 2026 → Jun 14, 2026
- baneproctest.vcu.edu — Jun 4, 2026 → Jun 12, 2026
Network Allocation for 128.172.22.111
- CIDR range
- 128.172.0.0/19
- IP range (int)
- 2,158,755,840 — 2,158,764,031
- Prefix length
- /19
- Organization
- Virginia Commonwealth University
- ASN
- AS16643
- ASN name
- Virginia Commonwealth University
- Location
- Richmond, Virginia, United States
- Coordinates
- 37.553700, -77.460200
- Accuracy radius
- 10 km
- Postal code
- 23220
- Regional Internet Registry
- ARIN
- Allocated
- 1986-10-21
- Data source(s)
- maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
- Last updated
- 2026-09-27 05:24:03
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 128.172.22.111?
128.172.22.111 is allocated to Virginia Commonwealth University (AS16643), registered in Richmond, United States.
Where is 128.172.22.111 located?
The geolocation for 128.172.22.111 maps to Richmond, 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 128.172.22.111 on?
128.172.22.111 belongs to the 128.172.0.0/19 network block announced by AS16643. This range contains 8,192 addresses.
Does 128.172.22.111 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.
