Data as of Nov 11, 2026
103.167.251.0/24
No anonymizer space · no proxy exits in 30 daysInternet Technology Laboratory · space held by Pang-Wei Tsai
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 this block, widest first, each 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 | — | abuse@ |
| └ 103.167.251.0/24 | 256 | ITLAB-NET-251 | Internet Technology Laboratory | ALLOCATED NON-PORTABLE | — | abuse@ |
Network & registry
Announced by
Covering announcement 103.167.250.0/23
- Prefix
- 103.167.250.0/23
- Announced by
- AS38254 Internet Technology Laboratory
- Type
- Business
- RPKI
- RPKI valid
- Netname
- PANGWEITSAI-TW
- Registrant
- Pang-Wei Tsai
- RIR
- APNIC
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 103.167.250.0/23
103.167.250.0/23
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Aug 2026 · 3 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 |
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
- abuse@
itlab. cc - Name
- ABUSE PANGWEITSAITW
- Handle
- AP1186-AP