Data as of Nov 3, 2026
103.167.250.0/23
No anonymizer space · no proxy exits in 30 daysInternet Technology Laboratory · space held by Pang-Wei Tsai
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
from AS38254 Internet Technology Laboratory, after 4.9 years unannounced
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 |
|---|---|---|---|---|---|---|
| 103.167.250.0/23 | 512 | PANGWEITSAI-TW | Pang-Wei Tsai (ORG-PT10-AP) · TW | ALLOCATED PORTABLE | — | [email protected] |
| └ 103.167.250.0/24 | 256 | ITLAB-NET-250 | Internet Technology Laboratory | ALLOCATED NON-PORTABLE | — | [email protected] |
| └ 103.167.251.0/24 | 256 | ITLAB-NET-251 | Internet Technology Laboratory | ALLOCATED NON-PORTABLE | — | [email protected] |
Network & registry
Origin network
AS38254
TW
- Name
- Internet Technology Laboratory
- Type
- Education
- Registered
- Jun 8, 2021
- Domain
- itlab.cc
- Website
- connect.itlab.cc/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.167.250.0/23 | AS38254 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 103.167.250.0/24 | AS38254 | APNIC | Internet Technology Laboratory | MAINT-PANGWEITSAI-TW | Sep 8, 2026 |
| 103.167.251.0/24 | AS38254 | APNIC | Internet Technology Laboratory | MAINT-PANGWEITSAI-TW | Sep 8, 2026 |
Whois
Registration for this announcement
- Range
- 103.167.250.0/23
- Netname
- PANGWEITSAI-TW
- Registrant
- Pang-Wei Tsai
- Registrant country
- TW
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 17, 2022
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- TW
- Delegated
- Jun 7, 2021
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE PANGWEITSAITW
- Handle
- AP1186-AP