Data as of Nov 7, 2026
146.120.137.0/24
90 residential-proxy exits · 30 daysUnitary enterprise A1 · space held by ALFA TELECOM s.r.o.
Residential-proxy exits
Proxy exits
90
35% of its addresses · 30 days
Providers
49
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
858 observations
Proxy providers listing exits
- 711Proxy
- Ake.net
- AnyIP
- B2Proxy
- BirdProxies
- BlurPath
- BottingTools
- BuyingProxy
- Byteful
- CatProxies
- CliProxy
- DataImpulse
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- Geonode
- GhostConnect
- GloryCloud
- HideProxy
- IPFly
- IPPeak
- InfiniteProxies
- KindProxy
- Kookey
- LudaxProxy
- MoMoProxy
- NextProxy
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- ProxiesVision
- Proxio
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxying
- PuraRoute
- RainProxy
- RapidProxy
- ResiProxies
- RoamProxy
- Shifter
- Thordata
- VantageProxies
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 146.120.0.0/16 since Nov 2013 | AS44546 | Residential | 10,584 2,003 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 |
|---|---|---|---|---|---|---|
| 146.120.0.0/16 | 65,536 | CZ-ALFATELECOM-20110712 | ALFA TELECOM s.r.o. (ORG-ATS13-RIPE) · CZ | ALLOCATED PA | Jul 12, 2011 | abuse@ |
| └ 146.120.128.0/20 | 4,096 | A1-NET | Unitary enterprise A1 (ORG-JMDC1-RIPE) · BY | ASSIGNED PA | Aug 15, 2016 | abuse@ |
Network & registry
Announced by
Covering announcement 146.120.136.0/21
- Prefix
- 146.120.136.0/21
- Announced by
- AS42772 Unitary enterprise A1
- Type
- Mobile
- Proxy exits
- 777
- RPKI
- RPKI valid
- Netname
- A1-NET
- Registrant
- Unitary enterprise A1
- RIR
- RIPE NCC
IPv4 market
Holder
- Organization
- ALFA TELECOM s.r.o.
- Handle
- ORG-ATS13-RIPE
- Range
- 146.
120. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Jul 12, 2011
Origin network
AS42772
BY
- Name
- Unitary enterprise A1
- Type
- Internet provider
- Registered
- Apr 13, 2007
- Domain
- a1.by
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
146.120.136.0/21
Routing history
- Pattern
- Stable
- First seen
- Aug 2023
- Current origin since
- Aug 2023 · 3.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 146.120.128.0/20 | AS42772 | /24 | RIPE | RPKI valid |
| 146.120.0.0/16 | AS44546 | /24 | RIPE | Another network |
IRR
Route objects on 146.120.136.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS42772 | RIPE | RIPE-DB-MNT | May 22, 2026 |
Whois
Registration for this announcement
- Range
- 146.
120. 128. 0/ 20 - Netname
- A1-NET
- Registrant
- Unitary enterprise A1
- Registrant country
- BY
- Organization
- Unitary enterprise A1 (ORG-JMDC1-RIPE)
- Org country
- BY
- Type
- ASSIGNED PA
- Created
- Aug 15, 2016
- Updated
- Jun 12, 2026
- Maintainer
- RIPE-DB-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Jul 12, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
a1. by - Name
- Velcom RIPE Admins
- Handle
- VELC-RIPE