128.112.128.152
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
- Academic allocation +6
- Long-established allocation (40y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Trust score 87 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- heymon.princeton.edu
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 21600 s
- Reverse DNS last checked
- 2026-10-01 08:19 UTC
Forward DNS records for heymon.princeton.edu
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 128.112.128.152 | — | 43200s |
| MX | heymon.princeton.edu | 2 | — |
| TXT | v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com | — | — |
| TXT | v=spf1 a a:www.net.princeton.edu -all | — | — |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
- heymon.princeton.edu stable — Jun 2, 2026 → present
- no PTR — May 31, 2026 → Jun 2, 2026
- heymon.princeton.edu — May 31, 2026 → May 31, 2026
Network Allocation for 128.112.128.152
- CIDR range
- 128.112.128.0/19
- IP range (int)
- 2,154,856,448 — 2,154,864,639
- Prefix length
- /19
- Organization
- Princeton University
- ASN
- AS88
- ASN name
- Princeton University
- Location
- Princeton, New Jersey, United States
- Coordinates
- 40.369900, -74.638100
- Accuracy radius
- 20 km
- Postal code
- 08540
- Regional Internet Registry
- ARIN
- Allocated
- 1986-02-24
- Data source(s)
- maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
- Last updated
- 2026-09-30 05:24:10
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 128.112.128.152?
128.112.128.152 is allocated to Princeton University (AS88), registered in Princeton, United States.
Where is 128.112.128.152 located?
The geolocation for 128.112.128.152 maps to Princeton, 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 128.112.128.152 on?
128.112.128.152 belongs to the 128.112.128.0/19 network block announced by AS88. This range contains 8,192 addresses.
Does 128.112.128.152 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.
