Data as of Nov 9, 2026
109.75.148.0/24
No anonymizer space · no proxy exits in 30 daysT-Mobile Czech Republic a.s.
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 |
|---|---|---|---|---|---|---|
| 109.75.144.0/20 | 4,096 | CZ-RADIOMOBIL-20091120 | T-Mobile Czech Republic a.s. (ORG-RA2-RIPE) · CZ | ALLOCATED PA | Nov 20, 2009 | abuse@ |
| └ 109.75.148.0/24 | 256 | TMCZ_ | CGNAT pool for customers of mobile ntwrk | ASSIGNED PA | May 21, 2026 | abuse@ via CZ-RADIOMOBIL-20091120 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 109.75.144.0/20
- Prefix
- 109.75.144.0/20
- Announced by
- AS13036 T-Mobile Czech Republic a.s.
- Type
- Mobile
- Proxy exits
- 19
- RPKI
- RPKI valid
- Netname
- CZ-RADIOMOBIL-20091120
- Registrant
- T-Mobile Czech Republic a.s.
- RIR
- RIPE NCC
Origin network
AS13036
CZ
- Name
- T-Mobile Czech Republic a.s.
- Type
- Internet provider
- Registered
- Feb 24, 2000
- Domain
- t-mobile.cz
- Website
- www.t-mobile.cz
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 109.75.144.0/20
109.75.144.0/20
Routing history
- Pattern
- Rotating
- First seen
- Dec 2009
- Current origin since
- Apr 2026 · 7 mo
- Origin networks
- 2
- Last change of origin
- Apr 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 109.75.144.0/20 | AS13036 | /20 | RIPE | RPKI valid |
IRR
Route objects on 109.75.144.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13036 | RIPE | T-Mobile Czech Republic a.s. | AS13036-MNT | Apr 8, 2026 |
Whois
Registration for this announcement
- Range
- 109.
75. 144. 0/ 20 - Netname
- CZ-RADIOMOBIL-20091120
- Registrant
- T-Mobile Czech Republic a.s.
- Registrant country
- CZ
- Organization
- T-Mobile Czech Republic a.s. (ORG-RA2-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Nov 20, 2009
- Updated
- Dec 29, 2025
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Nov 20, 2009
- Status
- assigned
Report abuse
Abuse contact
- abuse@
t-mobile. cz - Name
- Hostmaster T-Mobile Czech Republic
- Handle
- HR6606-RIPE