Data as of Nov 7, 2026
202.136.222.0/23
No anonymizer space · no proxy exits in 30 daysChina Unicom Shanghai network · space held by Shanghai DMT Information Network cor.,LTD.
Network & registry
Origin network
AS17621
CN
- Name
- China Unicom Shanghai network
- Type
- Internet provider
- Registered
- Jan 18, 2001
- Domain
- chinaunicom.cn
- Website
- www.chinaunicom.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2019
- Current origin since
- Jul 2020 · 6.3 yr
- Origin networks
- 2
- Last change of origin
- Jul 2020
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 202.136.222.0/23 | AS17621 | /23 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 202.
136. 208. 0/ 20 - Netname
- DMTNET
- Registrant
- Shanghai DMT Information Network cor.,LTD.
- Registrant country
- CN
- Organization
- Shanghai DMT Information Network cor.,LTD.
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 28, 2023
- Maintainer
- MAINT-CNNIC-AP
- RIR
- APNIC
- Country
- CN
- Delegated
- Apr 19, 2005
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP