Data as of Nov 14, 2026
140.207.136.0/24
No anonymizer space · no proxy exits in 30 daysChina Unicom Shanghai network · space held by CHINA UNICOM Shanghai city network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 140.207.0.0/16 since Aug 2011 | AS17621 | Residential | 223 2 always on | CHINA UNICOM Shanghai city network |
Network & registry
Announced by
Covering announcement 140.207.136.0/23
- Prefix
- 140.207.136.0/23
- Announced by
- AS17621 China Unicom Shanghai network
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- UNICOM-SH
- Registrant
- CHINA UNICOM Shanghai city network
- RIR
- APNIC
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
Covering aggregate above, the prefix's own history below
140.207.136.0/23
Routing history
- Pattern
- Stable
- First seen
- Nov 2024
- Current origin since
- Nov 2024 · 2.0 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 140.207.136.0/23 | AS17621 | /23 | APNIC | RPKI valid |
| 140.207.0.0/16 | AS17621 | /16 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 140.
206. 0. 0/ 15 - Netname
- UNICOM-SH
- Registrant
- CHINA UNICOM Shanghai city network
- Registrant country
- CN
- Organization
- CHINA UNICOM Shanghai city network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 22, 2025
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Mar 9, 2011
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP