Data as of Nov 9, 2026
212.51.221.0/24
2 residential-proxy exits · 30 daysLodz University of Technology
Residential-proxy exits
Proxy exits
2
0.78% of its addresses · 30 days
Providers
24
selling exits here
Oct 10, 2026 – Nov 8, 2026
Exits seen per day
193 observations
Proxy providers listing exits
- 2Captcha
- 2Extract
- BartProxies
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- EnigmaProxy
- FlashProxy
- FlexyProxies
- GSocks
- GonzoProxy
- IPPeak
- Infatica
- MangoProxy
- NodeProxy
- NovaProxy
- Proxy-Seller
- ProxyEmpire
- Proxyma
- RainProxy
- Shifter
- VantageProxies
- VitalExclusive
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 |
|---|---|---|---|---|---|---|
| 212.51.192.0/19 | 8,192 | PL-LODMAN-980917 | Lodz University of Technology (ORG-MANL1-RIPE) · PL | ALLOCATED PA | Jul 17, 2002 | abuse@ |
| └ 212. | 4,352 | TULODZ-NET | Technical University of Lodz (ORG-TULO1-RIPE) · PL | ASSIGNED PA | Mar 19, 2002 | abuse@ |
Network & registry
Announced by
Covering announcement 212.51.208.0/20
- Prefix
- 212.51.208.0/20
- Announced by
- AS8256 Lodz University of Technology
- Type
- Business
- Proxy exits
- 5
- RPKI
- RPKI valid
- Netname
- TULODZ-NET
- Registrant
- Technical University of Lodz
- RIR
- RIPE NCC
Registry
Holder
- Organization
- Lodz University of Technology
- Handle
- ORG-MANL1-RIPE
- Range
- 212.
51. 192. 0/ 19 - Registration type
- ALLOCATED PA
- Record created
- Jul 17, 2002
Origin network
AS8256
PL
- Name
- Lodz University of Technology
- Type
- Education
- Registered
- Apr 4, 1997
- Domain
- lodz.pl
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 212.51.208.0/20
212.51.208.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 212.51.208.0/20 | AS8256 | /20 | RIPE | RPKI valid |
IRR
Route objects on 212.51.208.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8256 | RIPE | LODMAN | AS8256-MNT | Aug 29, 2002 |
Whois
Registration for this announcement
- Range
- 212.
51. 207. 0 - 212. 51. 223. 255 - Netname
- TULODZ-NET
- Registrant
- Technical University of Lodz
- Registrant country
- PL
- Organization
- Technical University of Lodz (ORG-TULO1-RIPE)
- Org country
- PL
- Type
- ASSIGNED PA
- Created
- Mar 19, 2002
- Updated
- Sep 2, 2020
- Maintainer
- AS8256-MNT
- RIR
- RIPE NCC
- Country
- PL
- Delegated
- Sep 17, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
p. lodz. pl - Name
- Technical University of Lodz ABUSE
- Handle
- TULO1-RIPE