Data as of Nov 9, 2026
140.207.208.0/21
No anonymizer space · no proxy exits in 30 daysChina Unicom · 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 | 205 2 always on | CHINA UNICOM Shanghai city network |
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 140.207.208.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.209.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.210.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.211.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.212.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.213.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.214.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network | |
| 140.207.215.0/24 since Aug 2021 | AS138421 | Hosting | CHINA UNICOM Shanghai city network |
Network & registry
Origin network
AS138421
CN
- Name
- China Unicom
- Type
- Hosting
- Registered
- Nov 13, 2018
- Domain
- chinaunicom.cn
- Industry
- Media, Publishing, and Broadcasting
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2013
- Current origin since
- Aug 2021 · 5.3 yr
- Origin networks
- 2
- Last change of origin
- Aug 2021
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 140.207.208.0/21 | AS138421 | /21 | APNIC | RPKI valid |
| 140.207.0.0/16 | AS17621 | /16 | APNIC | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS138421 | APNIC | China Unicom | MAINT-CNCGROUP-RR | Jun 8, 2023 |
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