Data as of Nov 4, 2026
151.251.189.0/24
9 residential-proxy exits · 30 daysA1 Bulgaria EAD
Residential-proxy exits
Proxy exits
9
3.5% of its addresses · 30 days
Always-on exits
1
11% of its exits
Providers
44
selling exits here
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
467 observations
Proxy providers listing exits
- 2Captcha
- 711Proxy
- BestProxy
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- CatProxies
- DataImpulse
- FastProxy
- FlexyProxies
- GSocks
- Geonix
- GloryCloud
- GonzoProxy
- IPFly
- IPRoyal
- Infatica
- KindProxy
- LemonBright
- MagneticProxy
- MangoProxy
- MoMoProxy
- NSocks
- NiuProxy
- NodeProxy
- NovaProxy
- PSBProxy
- PrivateByte
- Proxiware
- Proxmint
- Proxy-Seller
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxyma
- Q2IP
- RainProxy
- RapidProxy
- Shifter
- Smartproxy
- TalorData
- 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. |
| └ 151.251.184.0/21 | 2,048 | A1-BFP184 | A1 Bulgaria EAD | ASSIGNED PA | Oct 5, 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 151.251.188.0/23
- Prefix
- 151.251.188.0/23
- Announced by
- AS29580 A1 Bulgaria EAD
- Type
- Residential
- Proxy exits
- 28
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- A1-BFP184
- Registrant
- A1 Bulgaria EAD
- RIR
- RIPE NCC
Registry
Holder
- Organization
- A1 Bulgaria EAD
- Handle
- ORG-MN1-RIPE
- Range
- 151.
251. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Aug 21, 2012
Origin network
AS29580
BG
- Name
- A1 Bulgaria EAD
- Type
- Internet provider
- Registered
- Oct 15, 2003
- Domain
- a1.bg
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
151.251.188.0/23
Routing history
- Pattern
- Stable
- First seen
- Jan 2024
- Current origin since
- Oct 2024 · 2.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.251.188.0/23 | AS29580 | /23 | RIPE | RPKI valid |
| 151.251.0.0/16 | AS8717 | /16 | RIPE | Another network |
IRR
Route objects on 151.251.188.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS29580 | RIPE | A1BG_RSBG_SFK | SPNET-MNT HOMELAN-MNT | Jan 8, 2026 |
Whois
Registration for this announcement
- Range
- 151.
251. 184. 0/ 21 - Netname
- A1-BFP184
- Registrant
- A1 Bulgaria EAD
- Registrant country
- BG
- Organization
- A1 Bulgaria EAD
- Org country
- BG
- Type
- ASSIGNED PA
- Created
- Oct 5, 2012
- Updated
- May 30, 2018
- Maintainer
- AS13124-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