Data as of Nov 3, 2026
175.41.48.0/20
No anonymizer space · no proxy exits in 30 daysTaiwan Internet Gateway · space held by International Business Group
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 175.41.48.0/24 since Feb 2010 | AS9505 | Internet provider | International Business Group | |
| 175.41.49.0/24 since Sep 2012 | AS9505 | Internet provider | International Business Group | |
| 175.41.50.0/24 since Sep 2012 | AS9505 | Internet provider | International Business Group | |
| 175.41.51.0/24 since Dec 2011 | AS9505 | Internet provider | International Business Group | |
| 175.41.52.0/24 since Dec 2011 | AS9505 | Internet provider | International Business Group | |
| 175.41.54.0/24 since Jan 2012 | AS9505 | Internet provider | International Business Group | |
| 175.41.55.0/24 since Sep 2012 | AS9505 | Internet provider | International Business Group | |
| 175.41.56.0/24 since Apr 2018 | AS9505 | Internet provider | International Business Group | |
| 175.41.57.0/24 since Apr 2018 | AS9505 | Internet provider | International Business Group | |
| 175.41.58.0/24 since Nov 2012 | AS9505 | Internet provider | International Business Group | |
| 175.41.61.0/24 since Oct 2010 | AS9505 | Internet provider | International Business Group | |
| 175.41.62.0/24 since Oct 2010 | AS9505 | Internet provider | International Business Group | |
| 175.41.63.0/24 since Aug 2018 | AS9505 | Internet provider | International Business Group |
Network & registry
Origin network
AS9505
TW
- Name
- Taiwan Internet Gateway
- Type
- Internet provider
- Registered
- Mar 24, 1999
- Domain
- cht.com.tw
- Website
- www.cht.com.tw
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2010
- Current origin since
- Feb 2010 · 17 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 175.41.48.0/20 | AS9505 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9505 | RADB | Taiwan Internet Gateway | MAINT-AS9505 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 175.41.60.0/24 | AS9505 | RADB | TWGate | MAINT-AS9505 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 175.41.48.0/20
- Netname
- TWGATE-NET
- Registrant
- International Business Group
- Registrant country
- TW
- Organization
- International Business Group
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 7, 2025
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Dec 17, 2009
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE TWNICAP
- Handle
- AT939-AP