202.199.248.40
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 (30y) +6
- Not on any threat blocklist +5
- Enterprise allocation +4
- Trust score 80 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- zhanqun.asnc.edu.cn
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 3600 s
- Reverse DNS last checked
- 2026-10-28 03:11 UTC
Forward DNS records for zhanqun.asnc.edu.cn
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 202.199.248.40 | — | 172800s |
| AAAA | 2001:250:700d:3::3 | — | 172800s |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-10-25 UTC0
issued.live's latest DNS data shows no domain resolving to this IP.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
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.
- zhanqun.asnc.edu.cn — Oct 28, 2026 → present
- www.asnc.cn — Oct 27, 2026 → Oct 28, 2026
- no PTR — Oct 26, 2026 → Oct 27, 2026
- zhanqun.asnc.edu.cn — Oct 26, 2026 → Oct 26, 2026
- www.asnc.cn — Oct 25, 2026 → Oct 26, 2026
- no PTR — Oct 24, 2026 → Oct 25, 2026
- www.asnc.cn — Oct 23, 2026 → Oct 24, 2026
- no PTR — Oct 23, 2026 → Oct 23, 2026
- zhanqun.asnc.edu.cn — Oct 22, 2026 → Oct 23, 2026
- no PTR — Oct 21, 2026 → Oct 22, 2026
- zhanqun.asnc.edu.cn — Oct 20, 2026 → Oct 21, 2026
- no PTR — Oct 14, 2026 → Oct 20, 2026
- www.asnc.cn — Oct 13, 2026 → Oct 14, 2026
- no PTR — Oct 12, 2026 → Oct 13, 2026
- www.asnc.cn — Oct 11, 2026 → Oct 12, 2026
- zhanqun.asnc.edu.cn — Oct 10, 2026 → Oct 11, 2026
- no PTR — Oct 9, 2026 → Oct 10, 2026
- www.asnc.cn — Oct 8, 2026 → Oct 9, 2026
- no PTR — Oct 7, 2026 → Oct 8, 2026
- zhanqun.asnc.edu.cn — Oct 6, 2026 → Oct 7, 2026
- no PTR — Oct 2, 2026 → Oct 6, 2026
- www.asnc.cn — Sep 30, 2026 → Oct 2, 2026
- no PTR — Sep 30, 2026 → Sep 30, 2026
- zhanqun.asnc.edu.cn — Sep 30, 2026 → Sep 30, 2026
- www.asnc.cn — Sep 29, 2026 → Sep 30, 2026
- no PTR — Sep 27, 2026 → Sep 29, 2026
- zhanqun.asnc.edu.cn — Sep 25, 2026 → Sep 27, 2026
- no PTR — Aug 24, 2026 → Sep 25, 2026
- www.asnc.cn — Aug 18, 2026 → Aug 24, 2026
- zhanqun.asnc.edu.cn — Aug 18, 2026 → Aug 18, 2026
- no PTR — Jun 27, 2026 → Aug 18, 2026
- zhanqun.asnc.edu.cn — Jun 23, 2026 → Jun 27, 2026
Network Allocation for 202.199.248.40
- CIDR range
- 202.198.0.0/15
- IP range (int)
- 3,401,973,760 — 3,402,104,831
- Prefix length
- /15
- Organization
- China Education and Research Network Center
- ASN
- AS4538
- ASN name
- China Education and Research Network Center
- Location
- China
- Coordinates
- 34.773200, 113.722000
- Accuracy radius
- 1000 km
- Regional Internet Registry
- APNIC
- Allocated
- 1996-01-30
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-10-27 08:49:32
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
RIR Ownership History
Atom feed ⇲Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours, for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | CN |
See the full history for 202.192.0.0/12.
Frequently Asked Questions
Who owns 202.199.248.40?
202.199.248.40 is allocated to China Education and Research Network Center (AS4538), registered in China.
Where is 202.199.248.40 located?
The geolocation for 202.199.248.40 maps to China 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 202.199.248.40 on?
202.199.248.40 belongs to the 202.198.0.0/15 network block announced by AS4538. This range contains 131,072 addresses.
Does 202.199.248.40 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.
