Data as of Nov 3, 2026
146.158.88.0/22
27 residential-proxy exits · 30 daysALFA TELECOM s.r.o.
Residential-proxy exits
Proxy exits
27
2.6% of its addresses · 30 days
Always-on exits
17
63% of its exits
Spread
3 of 4
/24s with at least one exit
Providers
65
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
20K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 146.158.88.0/24 | 16 | 22 | |
| 146.158.91.0/24 | 1 | 4 | |
| 146.158.90.0/24 | 0 | 1 |
Proxy providers listing exits
- 2Captcha
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BartProxies
- BestProxy
- BirdProxies
- BottingTools
- Bright Data
- ByteProxies
- Byteful
- CliProxy
- DataImpulse
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FloppyData
- GeekProxy
- Geonode
- GloryCloud
- IPFly
- IPPeak
- Infatica
- InfiniteProxies
- KindProxy
- Kookey
- LudaxProxy
- Maskify
- MoMoProxy
- NSocks
- NextProxy
- NiuProxy
- NovaProxy
- Novada
- Oxylabs
- PSBProxy
- PrivateByte
- PrivateProxy
- Proxio
- Proxiware
- Proxmint
- Proxy-Cheap
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- ProxyWing
- PuraRoute
- Q2IP
- RainProxy
- RapidProxy
- RoamProxy
- RolaProxy
- Shifter
- Smartproxy
- StrikeProxy
- Thordata
- ThunderProxy
- VProxy
- VantageProxies
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 146.158.88.0/24 since Mar 2026 | AS210616 | Residential | 22 16 always on | ALFA TELECOM s.r.o. | |
| 146.158.90.0/24 since Aug 2026 | AS210616 | Residential | 1 | ALFA TELECOM s.r.o. | |
| 146.158.91.0/24 since Jun 2026 | AS210616 | Residential | 4 1 always on | ALFA TELECOM s.r.o. |
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 |
|---|---|---|---|---|---|---|
| 146.158.0.0/17 | 32,768 | CZ-ALFATELECOM-20110712 | ALFA TELECOM s.r.o. (ORG-ATS13-RIPE) · CZ | ALLOCATED PA | Jul 12, 2011 | [email protected] |
| └ 146.158.88.0/22 | 1,024 | SIBMEDVED-NET | SM Ltd. (ORG-LS491-RIPE) · RU | ASSIGNED PA | Mar 6, 2026 | [email protected] |
Network & registry
Announced by
Covering announcement 146.158.0.0/17
- Prefix
- 146.158.0.0/17
- Announced by
- AS44546 ALFA TELECOM s.r.o.
- Type
- Residential
- Proxy exits
- 5,295
- Always-on exits
- 1,424
- RPKI
- RPKI valid
- Netname
- CZ-ALFATELECOM-20110712
- Registrant
- ALFA TELECOM s.r.o.
- RIR
- RIPE NCC
Origin network
AS44546
CZ
- Name
- ALFA TELECOM s.r.o.
- Type
- Internet provider
- Registered
- Feb 5, 2008
- Domain
- alfatelecom.cz
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 146.158.0.0/17
146.158.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2014
- Current origin since
- May 2014 · 13 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 146.158.0.0/17 | AS44546 | /24 | RIPE | RPKI valid |
IRR
Route objects on 146.158.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS44546 | RIPE | IP-AS.COM | RIPE-DB-MNT | Jul 1, 2022 |
Whois
Registration for this announcement
- Range
- 146.158.0.0/17
- Netname
- CZ-ALFATELECOM-20110712
- Registrant
- ALFA TELECOM s.r.o.
- Registrant country
- EU
- Organization
- ALFA TELECOM s.r.o. (ORG-ATS13-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Jul 12, 2011
- Updated
- May 16, 2023
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Jul 12, 2011
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Alfa Telecom s.r.o. NOC
- Handle
- ATCZ-RIPE