Data as of Nov 4, 2026
103.31.48.0/22
No anonymizer space · no proxy exits in 30 daysChina Education and Research Network Center · space held by Information Center of Shanghai Municipal Education Commission
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Sep 18, 2026
from AS17621 China Unicom Shanghai network, after 6.8 years unannounced
Network & registry
Origin network
AS4538
CN
- Name
- China Education and Research Network Center
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- cernet.edu.cn
- Website
- www.edu.cn
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Dec 2014
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 18, 2026
Recorded history
History
- Handoffs
- 2
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4538 | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK | May 25, 2016 |
| AS4538 | RADB | CMI (Customer Route) | MAINT-AS58453 | Nov 13, 2023 |
| AS24201 not the origin | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| AS56004 not the origin | APNIC | Shanghai Education and Research Network | MAINT-CNNIC-AP | Jul 6, 2021 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 103.31.48.0/23 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| 103.31.48.0/24 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| 103.31.49.0/24 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| 103.31.50.0/23 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| 103.31.50.0/24 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
| 103.31.51.0/24 | AS24201 | NTTCOM | route-object for AS55658 | MAINT-AS10217 | Jan 29, 2014 |
Whois
Registration for this announcement
- Range
- 103.31.48.0/22
- Netname
- SHERNET
- Registrant
- Information Center of Shanghai Municipal Education Commission
- Registrant country
- CN
- Organization
- Information Center of Shanghai Municipal Education Commission
- 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
- Nov 22, 2012
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE CNNICCN
- Handle
- AC1601-AP