Data as of Nov 9, 2026
103.21.140.0/23
No anonymizer space · no proxy exits in 30 daysChina Telecom (Group) · space held by Shanghai Meicheng Technology Information Co.,Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 103.21.140.0/22 since Apr 2013 | AS4812 | Residential | Shanghai Meicheng Technology Information Co.,Ltd. |
Network & registry
Origin network
AS4811
CN
- Name
- China Telecom (Group)
- Type
- Internet provider
- Registered
- May 12, 1999
- Domain
- chinatelecom.com.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2021
- Current origin since
- Apr 2021 · 5.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.21.140.0/23 | AS4811 | /23 | APNIC | RPKI valid |
| 103.21.140.0/22 | AS4812 | /22 | APNIC | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4811 | RADB | SHIDC | MAINT-AS4812 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 103.
21. 140. 0/ 22 - Netname
- ShanghaiMeicheng
- Registrant
- Shanghai Meicheng Technology Information Co.,Ltd.
- Registrant country
- CN
- Organization
- Shanghai Meicheng Technology Information Co.,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
- Oct 11, 2012
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP