Data as of Nov 8, 2026
88.133.252.0/23
25 residential-proxy exits · 30 daysStadtwerke Konstanz GmbH
Announced by
Type
Residential
Risk
0 / 100 · Low
Proxy exits nearby
Residential-proxy exits
Proxy exits
25
4.9% of its addresses · 30 days
Always-on exits
5
20% of its exits
Spread
2 of 2
/24s with at least one exit
Providers
62
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
11K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 88.133.252.0/24 | 4 | 18 | |
| 88.133.253.0/24 | 1 | 7 |
Proxy providers listing exits
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BirdProxies
- BlurPath
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CatProxies
- CliProxy
- DataImpulse
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FloppyData
- GeekProxy
- Geonode
- GloryCloud
- HideProxy
- IPCola
- IPFly
- IPPeak
- InfiniteProxies
- Kookey
- LudaxProxy
- Maskify
- MoMoProxy
- NextProxy
- NovProxy
- NovaProxy
- Novada
- PSBProxy
- PrivateByte
- ProxiesVision
- Proxio
- Proxiware
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- ProxyWing
- PuraRoute
- RainProxy
- RapidProxy
- RoamProxy
- SPYDERPROXY_PREMIUM
- Shifter
- StrikeProxy
- SwiftProxy
- TalorData
- Thordata
- ThunderProxy
- VantageProxies
- YumiProxy
- ZENPROXY_PREMIUM
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 |
|---|---|---|---|---|---|---|
| 88.133.248.0/21 | 2,048 | DE-SW-KONSTANZ-20051028 | Stadtwerke Konstanz GmbH (ORG-SKG3-RIPE) · DE | ALLOCATED PA | May 3, 2019 | abuse@ |
| └ 88.133.252.0/23 | 512 | DE-SWKN-ACCESS | Stadtwerke Konstanz GmbH (ORG-SKG3-RIPE) · DE | ASSIGNED PA | Jul 16, 2026 | abuse@ |
Network & registry
Announced by
Covering announcement 88.133.248.0/21
- Prefix
- 88.133.248.0/21
- Announced by
- AS57154 Stadtwerke Konstanz GmbH
- Type
- Residential
- Proxy exits
- 31
- Always-on exits
- 5
- RPKI
- RPKI valid
- Netname
- DE-SW-KONSTANZ-20051028
- Registrant
- Stadtwerke Konstanz GmbH
- RIR
- RIPE NCC
Origin network
AS57154
DE
- Name
- Stadtwerke Konstanz GmbH
- Type
- Internet provider
- Registered
- Aug 5, 2011
- Domain
- konstanz.de
- Website
- www.stadtwerke-konstanz.de
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 88.133.248.0/21
88.133.248.0/21
Routing history
- Pattern
- Stable
- First seen
- Aug 2019
- Current origin since
- Aug 2019 · 7.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 88.133.248.0/21 | AS57154 | /24 | RIPE | RPKI valid |
IRR
Route objects on 88.133.248.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS57154 | RIPE | DE-SWKN-88.133.248.0 | MNT-SWKN | Aug 27, 2019 |
Whois
Registration for this announcement
- Range
- 88.
133. 248. 0/ 21 - Netname
- DE-SW-KONSTANZ-20051028
- Registrant
- Stadtwerke Konstanz GmbH
- Registrant country
- DE
- Organization
- Stadtwerke Konstanz GmbH (ORG-SKG3-RIPE)
- Org country
- DE
- Type
- ALLOCATED PA
- Created
- May 3, 2019
- Updated
- May 3, 2019
- Maintainer
- MNT-SWKN
- RIR
- RIPE NCC
- Country
- DE
- Delegated
- Oct 28, 2005
- Status
- assigned
Report abuse
Abuse contact
- abuse@
tk-bodensee. net - Name
- Stadtwerke Konstanz ISP-Team
- Handle
- SWKN1-RIPE