Data as of Nov 12, 2026
5.81.0.0/17
1,435 residential-proxy exits · 30 daysBritish Telecommunications Limited
Residential-proxy exits
Proxy exits
1,435
4.4% of its addresses · 30 days
Always-on exits
59
4.1% of its exits
Spread
124 of 128
/24s with at least one exit
Providers
121
selling exits here
Oct 13, 2026 – Nov 11, 2026
Exits seen per day
671K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 5.81.17.0/24 | 3 | 27 | |
| 5.81.45.0/24 | 3 | 21 | |
| 5.81.53.0/24 | 3 | 21 | |
| 5.81.93.0/24 | 3 | 21 | |
| 5.81.85.0/24 | 3 | 16 | |
| 5.81.95.0/24 | 3 | 15 | |
| 5.81.43.0/24 | 3 | 12 | |
| 5.81.19.0/24 | 2 | 19 | |
| 5.81.49.0/24 | 2 | 18 | |
| 5.81.56.0/24 | 2 | 15 | |
| 5.81.1.0/24 | 2 | 14 | |
| 5.81.37.0/24 | 2 | 12 | |
| 5.81.42.0/24 | 2 | 11 | |
| 5.81.63.0/24 | 2 | 11 | |
| 5.81.111.0/24 | 2 | 10 | |
| 5.81.59.0/24 | 2 | 9 | |
| 5.81.4.0/24 | 2 | 8 | |
| 5.81.33.0/24 | 1 | 19 | |
| 5.81.31.0/24 | 1 | 17 | |
| 5.81.15.0/24 | 1 | 17 | |
| 5.81.40.0/24 | 1 | 17 | |
| 5.81.7.0/24 | 1 | 16 | |
| 5.81.80.0/24 | 1 | 15 | |
| 5.81.125.0/24 | 1 | 14 |
Proxy providers listing exits
- 2Extract
- 711Proxy
- 9Proxy
- ASHBURNPROXIES
- Ake.net
- AnyIP
- B2Proxy
- BartProxies
- BirdProxies
- BlurPath
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CatProxies
- CliProxy
- CoreProxy
- DataImpulse
- Datarama
- Decodo
- EVOPROXY
- EZProxies
- EnigmaProxy
- Evomi
- FLEETPROXY
- FROXY
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- GeekProxy
- Geonix
- Geonode
- GhostConnect
- GloryCloud
- GoProxies
- GonzoProxy
- HideProxy
- HydraProxy
- IPCola
- IPFly
- IPMUSK
- IPPeak
- IPROCKET_BASIC
- IPROCKET_PREMIUM
- IPRoyal
- Infatica
- InfiniteProxies
- KindProxy
- KocerRoxy
- Kookey
- LemonBright
- LemonLabs
- LemonPrime
- LightningProxies
- LudaxProxy
- MangoProxy
- Maskify
- MoMoProxy
- NextProxy
- NodeMaven
- NodeProxy
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PROXYON
- PROXYSCRAPE
- PROXYWING_BASIC
- PSBProxy
- PYPROXY
- PacketStream
- PrivateByte
- PrivateProxy
- Proxies.fo
- ProxiesVision
- Proxio
- Proxiware
- Proxmint
- Proxy-Seller
- Proxy302
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyHat
- ProxyRack
- ProxyWing
- Proxying
- Proxyma
- PuraRoute
- Q2IP
- QUANTICDATA
- RH7Proxy
- RainProxy
- RapidProxy
- RealProxy
- ResiProxies
- RoamProxy
- RolaProxy
- SPYDERPROXY_BASIC
- SPYDERPROXY_PREMIUM
- Shifter
- StrikeProxy
- SwiftProxy
- TORCHPROXIES_BASIC
- TORCHPROXIES_PREMIUM
- TORCHPROXIES_X
- TalorData
- Thordata
- ThunderProxy
- TrueProxies
- VProxy
- VantageProxies
- VibeProxies
- VitalData
- VitalExclusive
- VitalProxy
- YumiProxy
- ZENPROXY_LITE
- ZENPROXY_PREMIUM
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 5.80.0.0/15 since Jul 2014 | AS2856 | Residential | 6,201 225 always on | British Telecommunications Limited |
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 |
|---|---|---|---|---|---|---|
| 5.80.0.0/15 | 131,072 | UK-BT-20120613 | British Telecommunications Limited (ORG-BPIS1-RIPE) · GB | ALLOCATED PA | Jun 13, 2012 | abuse@ |
| └ 5.81.0.0/16 | 65,536 | BT-INFRA | BT Infrastructure Layer | LIR-PARTITIONED PA | Jul 30, 2014 | abuse@ via UK-BT-20120613 |
| └ 5.81.0.0/17 | 32,768 | BT-Central-Plus | BT-Central-Plus | ASSIGNED PA | Jul 30, 2014 | abuse@ via BT-INFRA |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 5.81.0.0/16
- Prefix
- 5.81.0.0/16
- Announced by
- AS2856 British Telecommunications Limited
- Type
- Residential
- Proxy exits
- 2,933
- Always-on exits
- 120
- RPKI
- RPKI valid
- Netname
- BT-INFRA
- Registrant
- BT Infrastructure Layer
- RIR
- RIPE NCC
Registry
Holder
- Organization
- British Telecommunications Limited
- Handle
- ORG-BPIS1-RIPE
- Range
- 5.
80. 0. 0/ 15 - Registration type
- ALLOCATED PA
- Record created
- Jun 13, 2012
- Reallocated to
- BT Infrastructure Layer
- Reallocated range
- 5.
81. 0. 0/ 16 - Reallocation type
- LIR-PARTITIONED PA
- Reallocated
- Jul 30, 2014
Origin network
AS2856
GB
- Name
- British Telecommunications Limited
- Type
- Internet provider
- Registered
- Dec 22, 1993
- Domain
- bt.net
- Website
- www.bt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 12
Routing timeline
Covering aggregate above, the prefix's own history below
5.81.0.0/16
Routing history
- Pattern
- Stable
- First seen
- Dec 2012
- Current origin since
- Dec 2012 · 14 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 5.81.0.0/16 | AS2856 | /16 | RIPE | RPKI valid |
| 5.80.0.0/15 | AS2856 | /15 | RIPE | Too specific |
IRR
Route objects on 5.81.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2856 | RIPE | BT Public Internet Service | BTNET-INFRA-MNT | Jul 29, 2014 |
Whois
Registration for this announcement
- Range
- 5.
81. 0. 0/ 16 - Netname
- BT-INFRA
- Registrant
- BT Infrastructure Layer
- Registrant country
- GB
- Organization
- BT Infrastructure Layer
- Org country
- GB
- Type
- LIR-PARTITIONED PA
- Created
- Jul 30, 2014
- Updated
- Jul 30, 2014
- Maintainer
- BTNET-INFRA-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Jun 13, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
bt. com - Name
- Abuse-C Role
- Handle
- AR13878-RIPE