Data as of Nov 4, 2026
151.251.80.0/21
272 residential-proxy exits · 30 daysA1 Bulgaria EAD
Residential-proxy exits
Proxy exits
272
13% of its addresses · 30 days
Spread
7 of 8
/24s with at least one exit
Providers
70
selling exits here
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
9.7K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 151.251.85.0/24 | 0 | 53 | |
| 151.251.83.0/24 | 0 | 46 | |
| 151.251.80.0/24 | 0 | 44 | |
| 151.251.84.0/24 | 0 | 41 | |
| 151.251.82.0/24 | 0 | 36 | |
| 151.251.81.0/24 | 0 | 35 | |
| 151.251.86.0/24 | 0 | 17 |
Proxy providers listing exits
- 711Proxy
- Ake.net
- AnyIP
- B2Proxy
- BartProxies
- BestProxy
- BirdProxies
- BlurPath
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CliProxy
- DataImpulse
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- Geonode
- GloryCloud
- GonzoProxy
- IPFly
- IPOasis
- IPPeak
- IPRoyal
- Infatica
- InfiniteProxies
- KindProxy
- Kookey
- LemonBright
- LemonLabs
- LemonPrime
- LudaxProxy
- MangoProxy
- MoMoProxy
- NSocks
- NextProxy
- NodeProxy
- NovProxy
- NovaProxy
- Oxylabs
- PrivateByte
- Proxiware
- Proxmint
- Proxy-Seller
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxyma
- PuraRoute
- Q2IP
- RainProxy
- RapidProxy
- RoamProxy
- RolaProxy
- Shifter
- Smartproxy
- SwiftProxy
- TalorData
- Thordata
- VantageProxies
- VitalExclusive
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 151.251.0.0/16 since Feb 2022 | AS8717 | Residential | 5,646 114 always on | A1 Bulgaria EAD |
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 |
|---|---|---|---|---|---|---|
| 151.251.0.0/16 | 65,536 | BG-MTELNET-20120821 | A1 Bulgaria EAD (ORG-MN1-RIPE) · BG | ALLOCATED PA | Aug 21, 2012 | RIPE. |
| └ 151.251.80.0/21 | 2,048 | A1-BFP80 | A1 Bulgaria EAD | ASSIGNED PA | Sep 11, 2012 | RIPE. via BG-MTELNET-20120821 |
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 151.251.80.0/20
- Prefix
- 151.251.80.0/20
- Announced by
- AS13124 A1 Bulgaria EAD
- Type
- Residential
- Proxy exits
- 272
- RPKI
- RPKI valid
- Netname
- BG-MTELNET-20120821
- Registrant
- A1 Bulgaria EAD
- RIR
- RIPE NCC
Routing timeline
Covering aggregate above, the prefix's own history below
151.251.80.0/20
Routing history
- Pattern
- Stable
- First seen
- Nov 2021
- Current origin since
- Nov 2021 · 4.9 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.251.80.0/20 | AS13124 | /20 | RIPE | RPKI valid |
| 151.251.0.0/16 | AS8717 | /16 | RIPE | Another network |
IRR
Route objects on 151.251.80.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS13124 | RIPE | A1BG_RSC_SDR | SPNET-MNT AS13124-MNT | Jan 9, 2026 |
Whois
Registration for this announcement
- Range
- 151.
251. 0. 0/ 16 - Netname
- BG-MTELNET-20120821
- Registrant
- A1 Bulgaria EAD
- Registrant country
- BG
- Organization
- A1 Bulgaria EAD (ORG-MN1-RIPE)
- Org country
- BG
- Type
- ALLOCATED PA
- Created
- Aug 21, 2012
- Updated
- Nov 8, 2017
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- BG
- Delegated
- Aug 21, 2012
- Status
- assigned
Report abuse
Abuse contact
- RIPE.
Abuse@ a1. bg - Name
- A1 Bulgaria EAD Abuse
- Handle
- AR14215-RIPE