Data as of Nov 4, 2026
103.37.136.0/22
No anonymizer space · no proxy exits in 30 daysChina Unicom Beijing Province Network
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 103.37.136.0/22 | 1,024 | SKBJNET | Beijing Sankuai Technology Co.,Ltd. | ALLOCATED PORTABLE | Aug 26, 2014 | [email protected] |
Network & registry
Announced by
Covering announcement 103.37.136.0/21
- Prefix
- 103.37.136.0/21
- Announced by
- AS4808 China Unicom Beijing Province Network
- Type
- Residential
- RPKI
- RPKI valid
- RIR
- APNIC
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS4808
CN
- Name
- China Unicom Beijing Province Network
- Type
- Internet provider
- Registered
- Jan 9, 1996
- Domain
- chinaunicom.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 103.37.136.0/21
103.37.136.0/21
Routing history
- Pattern
- Rotating
- First seen
- Jan 2015
- Current origin since
- Apr 2022 · 4.5 yr
- Origin networks
- 4
- Last change of origin
- Apr 2022
Recorded history
History
- Handoffs
- 6
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.37.136.0/21 | AS4808 | /21 | APNIC | RPKI valid |
| 103.37.136.0/21 | AS23724 | /21 | APNIC | Another network |
| 103.37.136.0/21 | AS59025 | /21 | APNIC | Another network |
IRR
Route objects on 103.37.136.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS23724 not the origin | RADB | China Telecom Beijing Co. Ltd. | MAINT-AS23724 | Apr 22, 2026 |
Whois
Registration for this announcement
103.37.136.0/21 spans several registrations: 2 records are listed under Registrations.
- Registrant country
- AU
- RIR
- APNIC
- Country
- CN
- Delegated
- Aug 26, 2014
- Status
- assigned