Data as of Nov 8, 2026
103.21.148.0/22
3 residential-proxy exits · 30 daysCMC Telecom Infrastructure Company
Residential-proxy exits
Proxy exits
3
0.29% of its addresses · 30 days
Spread
2 of 4
/24s with at least one exit
Providers
1
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
105 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 103.21.150.0/24 | 0 | 2 | |
| 103.21.148.0/24 | 0 | 1 |
Proxy providers listing exits
- Thordata
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 103.21.148.0/24 since Jun 2017 | AS38732 | Internet provider | 1 | CMC Telecom Infrastructure Company | |
| 103.21.149.0/24 since Feb 2016 | AS38732 | Internet provider | CMC Telecom Infrastructure Company | ||
| 103.21.150.0/24 since Jun 2017 | AS38732 | Internet provider | 2 | CMC Telecom Infrastructure Company | |
| 103.21.151.0/24 since Jun 2017 | AS38732 | Internet provider | CMC Telecom Infrastructure Company |
Network & registry
Origin network
AS38732
VN
- Name
- CMC Telecom Infrastructure Company
- Type
- Internet provider
- Registered
- Sep 14, 2007
- Domain
- cmctelecom.vn
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2012
- Current origin since
- Jan 2021 · 5.8 yr
- Origin networks
- 2
- Last change of origin
- Jan 2013
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.21.148.0/22 | AS38732 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 103.21.148.0/23 | AS38732 | RADB | Proxy-registered route object | MAINT-HGC-INTL | Oct 2, 2026 |
| 103.21.148.0/23 | AS38732 | APNIC | CMCTELECOM-VN | MAINT-VN-VNNIC | Sep 16, 2022 |
| 103.21.150.0/23 | AS38732 | RADB | Proxy-registered route object | MAINT-HGC-INTL | Oct 2, 2026 |
| 103.21.150.0/23 | AS38732 | APNIC | CMCTELECOM-VN | MAINT-VN-VNNIC | Sep 16, 2022 |
Whois
Registration for this announcement
- Range
- 103.
21. 148. 0/ 22 - Netname
- CMCTELECOM-VN
- Registrant
- CMC Telecom Infrastructure Company
- Registrant country
- VN
- Organization
- CMC Telecom Infrastructure Company
- Org country
- VN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Aug 31, 2023
- Maintainer
- MAINT-VN-VNNIC
- RIR
- APNIC
- Country
- VN
- Delegated
- Oct 11, 2012
- Status
- assigned
Report abuse
Abuse contact
- hm-changed@
vnnic. vn - Name
- IRT-VNNIC-AP
- Handle
- IRT-VNNIC-AP