Data as of Nov 5, 2026
211.155.251.32/28
No anonymizer space · no proxy exits in 30 daysChina Unicom Beijing Province Network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 211.155.240.0/20 since Aug 2016 | AS4808 | Residential |
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 |
|---|---|---|---|---|---|---|
| 211.155.128.0/17 | 32,768 | CNNIC | unknown | ALLOCATED PORTABLE | — | ipas@ |
| └ 211.155.240.0/20 | 4,096 | DXTNET | Beijing Teletron Telecom Engineering Co., Ltd. | ALLOCATED PORTABLE | — | ipas@ |
| └ 211.155.248.0/21 | 2,048 | ZBTNET | Beijing zhong bang Telecom Technology Co Ltd | ALLOCATED PORTABLE | — | ipas@ |
| └ 211.155.251.32/28 | 16 | GUO-NENG-TIAN-EN | Beijing GUO-Neng-Tian-ENG-KE-JI CO.LTD | ASSIGNED NON-PORTABLE | — | ipas@ via ZBTNET |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 211.155.248.0/21
- Prefix
- 211.155.248.0/21
- Announced by
- AS4808 China Unicom Beijing Province Network
- Type
- Residential
- RPKI
- No RPKI
- Netname
- ZBTNET
- Registrant
- Beijing zhong bang Telecom Technology Co Ltd
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Not stated by the registry
- Range
- 211.
155. 128. 0/ 17 - Registration type
- ALLOCATED PORTABLE
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
Covering aggregate above, the prefix's own history below
211.155.248.0/21
Routing history
- Pattern
- Rotating
- First seen
- Aug 2010
- Current origin since
- Jan 2026 · 9 mo
- Origin networks
- 3
- Last change of origin
- Jan 2026
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 211.
155. 248. 0/ 21 - Netname
- ZBTNET
- Registrant
- Beijing zhong bang Telecom Technology Co Ltd
- Registrant country
- CN
- Organization
- Beijing zhong bang Telecom Technology 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
- Jun 27, 2000
- Status
- assigned
Report abuse
Abuse contact
- ipas@
cnnic. cn - Name
- ABUSE CNNICCN
- Handle
- AC1601-AP