Data as of Nov 9, 2026
220.249.240.0/20
No anonymizer space · no proxy exits in 30 daysChina Unicom Shenzen network · space held by China Unicom IP network
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 220.249.240.0/21 since Sep 2023 | AS135061 | Hosting | China Unicom IP network via Guangdong prvincial network of China Netcom |
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 |
|---|---|---|---|---|---|---|
| 220. | 327,680 | UNICOM-CN | China Unicom IP network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 220.249.192.0/18 | 16,384 | UNICOM-GD | China Unicom Guangdong province network | ALLOCATED PORTABLE | — | hqs-ipabuse@ |
| └ 220. | 12,288 | CNC-GD-province | Guangdong prvincial network of China Netcom | ALLOCATED NON-PORTABLE | — | hqs-ipabuse@ via UNICOM-GD |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 2,048 | 50% | 1 | |
| Residential | 2,048 | 50% | 1 |
Network & registry
Registry
Holder
- Organization
- China Unicom IP network
- Range
- 220.
248. 0. 0 - 220. 252. 255. 255 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Guangdong prvincial network of China Netcom
- Reallocated range
- 220.
249. 208. 0 - 220. 249. 255. 255 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS17623
CN
- Name
- China Unicom Shenzen network
- Type
- Internet provider
- Registered
- Jan 18, 2001
- Domain
- chinaunicom.cn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 220.249.240.0/20 | AS17623 | /20 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 220.249.248.0/24 | AS17623 | APNIC | China Unicom | MAINT-CNCGROUP-RR | Jun 8, 2023 |
| 220.249.255.0/24 | AS17623 | APNIC | China Unicom | MAINT-CNCGROUP-RR | Jun 8, 2023 |
Whois
Registration for this announcement
- Range
- 220.
249. 208. 0 - 220. 249. 255. 255 - Netname
- CNC-GD-province
- Registrant
- Guangdong prvincial network of China Netcom
- Registrant country
- CN
- Organization
- Guangdong prvincial network of China Netcom
- Org country
- CN
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 4, 2008
- Maintainer
- MAINT-CN-ZM28
- RIR
- APNIC
- Country
- CN
- Delegated
- Feb 28, 2003
- Status
- assigned
Report abuse
Abuse contact
- hqs-ipabuse@
chinaunicom. cn - Name
- ABUSE CUCN
- Handle
- AC1718-AP