Data as of Nov 12, 2026
27.40.8.0/23
No anonymizer space · no proxy exits in 30 daysChina Unicom Guangzhou network · space held by China Unicom Guangdong province network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 27.40.8.0/22 since Apr 2012 | AS17622 | Residential | China Unicom Guangdong province network | ||
| 27.40.0.0/13 since Mar 2010 | AS17816 | Residential | 6,140 11 always on | China Unicom Guangdong province network |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 27.40.8.0/24 since Jul 2026 | AS4837 | Residential | China Unicom Guangdong province network | |
| 27.40.9.0/24 since Jul 2026 | AS4837 | Residential | China Unicom Guangdong province network |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 27.40.0.0/13 | 524,288 | UNICOM-GD | China Unicom Guangdong province network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 27.40.8.0/22 | 1,024 | GuangZhou-unicom | United-Communications-Network-Technology-Co-Ltd, GuangZhou | ASSIGNED NON-PORTABLE | — | hqs-ipabuse@ |
Network & registry
Registry
Holder
- Organization
- China Unicom Guangdong province network
- Range
- 27.
40. 0. 0/ 13 - Registration type
- ALLOCATED PORTABLE
Origin network
AS17622
CN
- Name
- China Unicom Guangzhou network
- Type
- Internet provider
- Registered
- Jan 18, 2001
- Domain
- chinaunicom.cn
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2016
- Current origin since
- Apr 2016 · 11 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 27.40.8.0/23 | AS17622 | /23 | APNIC | RPKI valid |
| 27.40.8.0/22 | AS17622 | /22 | APNIC | Too specific |
| 27.40.0.0/13 | AS17816 | /13 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 27.
40. 8. 0/ 22 - Netname
- GuangZhou-unicom
- Registrant
- United-Communications-Network-Technology-Co-Ltd, GuangZhou
- Registrant country
- CN
- Organization
- United-Communications-Network-Technology-Co-Ltd, GuangZhou
- Org country
- CN
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 21, 2023
- Maintainer
- MAINT-CNCGROUP-GD
- RIR
- APNIC
- Country
- CN
- Delegated
- Mar 23, 2010
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP