Data as of Nov 15, 2026
61.19.121.0/24
No anonymizer space · no proxy exits in 30 daysNational Telecom Public Company Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 61.19.120.0/21 since Nov 2025 | AS9931 | Unknown | 22 2 always on | National Telecom Public Company Limited | |
| 61.19.96.0/19 since Sep 2009 | AS9931 | Unknown | 72 7 always on | National Telecom Public Company Limited |
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 |
|---|---|---|---|---|---|---|
| 61.19.0.0/16 | 65,536 | NTPCL-TH | National Telecom Public Company Limited (ORG-NTPC1-AP) · TH | ALLOCATED PORTABLE | — | pitoon. |
| └ 61.19.64.0/18 | 16,384 | CAT-ISP-NET | unknown | ALLOCATED NON-PORTABLE | — | pitoon. |
Network & registry
Announced by
Covering announcement 61.19.120.0/23
- Prefix
- 61.19.120.0/23
- Announced by
- AS9931 National Telecom Public Company Limited
- Type
- Unknown
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- CAT-ISP-NET
- RIR
- APNIC
IPv4 market
Holder
- Organization
- National Telecom Public Company Limited
- Handle
- ORG-NTPC1-AP
- Range
- 61.
19. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Not named in the registry
- Reallocated range
- 61.
19. 64. 0/ 18 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS9931
TH
- Name
- National Telecom Public Company Limited
- Type
- Internet provider
- Registered
- Apr 5, 2000
- Domain
- cat.net.th
- Website
- www.cat.net.th/cat-corporate/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 7
Routing timeline
Covering aggregate above, the prefix's own history below
61.19.120.0/23
Routing history
- Pattern
- Stable
- First seen
- Nov 2025
- Current origin since
- Nov 2025 · 12 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.19.96.0/19 | AS9931 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 61.
19. 64. 0/ 18 - Netname
- CAT-ISP-NET
- Registrant country
- TH
- Organization
- Not stated by the registry
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 19, 2025
- Maintainer
- MAINT-NTPCL-TH
- RIR
- APNIC
- Country
- TH
- Delegated
- Nov 30, 2004
- Status
- assigned
Report abuse
Abuse contact
- pitoon.
p@ ntplc. co. th - Name
- ABUSE NTPCLTH
- Handle
- AN3307-AP