Data as of Nov 8, 2026
211.153.88.0/21
No anonymizer space · no proxy exits in 30 daysChina Networks Inter-Exchange
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 211.153.0.0/17 since Nov 2017 | AS4847 | Residential | 1 |
More specific
Announcements inside
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 211.153.88.0/22 since Apr 2022 | AS4847 | Residential | |
| 211.153.92.0/23 since May 2024 | AS4847 | Residential |
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 |
|---|---|---|---|---|---|---|
| 211. | 221,184 | CNNIC | unknown | ALLOCATED PORTABLE | — | ipas@ |
| └ 211.153.0.0/16 | 65,536 | BITCC | Beijing International Technology Cooperation Center Co.,Ltd | ALLOCATED PORTABLE | — | liyao@ |
| └ 211. | 129 | ms51st | The 51st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms52st | The 52st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms53st | The 53st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms54st | The 54st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms55st | The 55st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | MS56st | The 56st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms57st | The 57st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms58st | The 58st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms59st | The 59st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms60st | The 60st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms61st | The 61st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms62st | The 62st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms63st | The 63st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms64st | The 64st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 129 | ms65st | The 65st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
| └ 211. | 127 | ms66st | The 66st Middle School in beijing | ASSIGNED NON-PORTABLE | — | liyao@ via BITCC |
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
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 1,032 | 50% | 8 | |
| Business | 1,016 | 50% | 8 |
Network & registry
IPv4 market
Holder
- Organization
- Not stated by the registry
- Range
- 211.
152. 0. 0 - 211. 155. 95. 255 - Registration type
- ALLOCATED PORTABLE
Origin network
AS4847
CN
- Name
- China Networks Inter-Exchange
- Type
- Internet provider
- Registered
- Sep 10, 1996
- Domain
- bta.net.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
- Dec 2014
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Oct 2015
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 211.153.88.0/21 | AS4847 | /21 | APNIC | RPKI valid |
| 211.153.0.0/17 | AS4847 | /17 | APNIC | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4847 | RADB | regist for jiaoyuxinxi | MAINT-AS4847 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 211.
153. 0. 0/ 16 - Netname
- BITCC
- Registrant
- Beijing International Technology Cooperation Center Co.,Ltd
- Registrant country
- CN
- Organization
- Beijing International Technology Cooperation Center Co.,Ltd
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Dec 4, 2025
- Maintainer
- MAINT-CNNIC-AP
- RIR
- APNIC
- Country
- CN
- Delegated
- Jun 27, 2000
- Status
- assigned
Report abuse
Abuse contact
- liyao@
bitcc. com. cn - Name
- IRT-BITCC-CN
- Handle
- IRT-BITCC-CN