Data as of Nov 8, 2026
81.20.244.0/22
33 residential-proxy exits · 30 daysNOS Comunicacoes, S.A. · space held by NOS Acores Comunicacoes, S.A.
Announcement
this exact prefix
RPKI invalid (length)
Announced by
Type
Residential
Risk
0 / 100 · Low
Residential-proxy exits
Proxy exits
33
3.2% of its addresses · 30 days
Always-on exits
5
15% of its exits
Spread
4 of 4
/24s with at least one exit
Providers
67
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
31K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 81.20.247.0/24 | 3 | 11 | |
| 81.20.244.0/24 | 1 | 9 | |
| 81.20.245.0/24 | 1 | 5 | |
| 81.20.246.0/24 | 0 | 8 |
Proxy providers listing exits
- 2Extract
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BirdProxies
- BlurPath
- BottingTools
- ByteProxies
- Byteful
- CliProxy
- CoreProxy
- DataImpulse
- Decodo
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- GeekProxy
- Geonix
- Geonode
- GloryCloud
- GoProxies
- GonzoProxy
- IPFly
- IPPeak
- IPRoyal
- Infatica
- InfiniteProxies
- KindProxy
- Kookey
- LemonBright
- LemonLabs
- MangoProxy
- MoMoProxy
- NodeProxy
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PSBProxy
- Proxiware
- Proxy-Seller
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- ProxyWing
- Proxyma
- PuraRoute
- RainProxy
- RapidProxy
- RoamProxy
- RolaProxy
- Shifter
- StrikeProxy
- SwiftProxy
- TalorData
- Thordata
- ThunderProxy
- VantageProxies
- VitalExclusive
- Webshare
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 81.20.240.0/20 since Apr 2007 | AS42580 | Residential | 187 14 always on | NOS Acores Comunicacoes, S.A. |
Network & registry
Origin network
AS2860
PT
- Name
- NOS Comunicacoes, S.A.
- Type
- Internet provider
- Registered
- Jan 18, 1994
- Domain
- nos.pt
- Website
- www.nos.pt
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- First seen
- Before our records
- Origin networks
- 0
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.20.240.0/20 | AS2860 | /20 | RIPE | Too specific |
| 81.20.240.0/20 | AS42580 | /20 | RIPE | Another network |
Whois
Registration for this announcement
- Range
- 81.
20. 240. 0/ 20 - Netname
- TVACOREANA
- Registrant
- NOS Acores Comunicacoes, S.A.
- Registrant country
- PT
- Organization
- NOS Acores Comunicacoes, S.A. (ORG-CTAS1-RIPE)
- Org country
- PT
- Type
- ASSIGNED PI
- Created
- Mar 26, 2002
- Updated
- Sep 19, 2016
- Maintainer
- RIPE-NCC-END-MNT
- RIR
- RIPE NCC
- Country
- PT
- Delegated
- Mar 26, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
nos-acores. pt - Name
- Abuse-C Role
- Handle
- AR16480-RIPE