136.145.188.144
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 (37y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- laptop-red.rrp.campus
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 900 s
- Reverse DNS last checked
- 2026-09-10 06:37 UTC
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.
- marioalberto-pc.rrp.campus stable — Jul 1, 2026 → present
- johanna-pc.rrp.campus — Jun 27, 2026 → Jul 1, 2026
- marioalberto-pc.rrp.campus — Jun 11, 2026 → Jun 27, 2026
Network Allocation for 136.145.188.144
- CIDR range
- 136.145.184.0/21
- IP range (int)
- 2,291,251,200 — 2,291,253,247
- Prefix length
- /21
- Organization
- University of Puerto Rico
- ASN
- AS5786
- ASN name
- University of Puerto Rico
- Location
- San Juan, Puerto Rico
- Coordinates
- 18.472300, -66.105200
- Accuracy radius
- 10 km
- Postal code
- 00923
- Regional Internet Registry
- ARIN
- Allocated
- 1989-08-29
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-09-08 04:07:45
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 136.145.188.144?
136.145.188.144 is allocated to University of Puerto Rico (AS5786), registered in San Juan, Puerto Rico.
Where is 136.145.188.144 located?
The geolocation for 136.145.188.144 maps to San Juan, Puerto Rico 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 136.145.188.144 on?
136.145.188.144 belongs to the 136.145.184.0/21 network block announced by AS5786. This range contains 2,048 addresses.
Does 136.145.188.144 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.
