Data as of Nov 9, 2026
151.251.121.0/24
1 residential-proxy exit · 30 daysA1 Bulgaria EAD
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Risk
10 / 100 · Low
Shared address
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 10, 2026 – Nov 8, 2026
Exits seen per day
4 observations
Proxy providers listing exits
- FastProxy
- LemonBright
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 151.251.0.0/16 since Feb 2022 | AS8717 | Residential | 5,852 117 always on | A1 Bulgaria EAD |
Network & registry
Origin network
AS12716
BG
- Name
- A1 Bulgaria EAD
- Type
- Internet provider
- Registered
- Oct 8, 1999
- Domain
- a1.bg
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2022
- Current origin since
- Sep 2022 · 4.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.251.121.0/24 | AS12716 | /24 | RIPE | RPKI valid |
| 151.251.0.0/16 | AS8717 | /16 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS12716 | RIPE | A1BG_MSIS | SPNET-MNT AS12716-MNT | Oct 18, 2024 |
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