Data as of Nov 4, 2026
151.251.64.0/23
No anonymizer space · no proxy exits in 30 daysA1 Bulgaria EAD
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 the announcement: those covering it, widest first, then every record inside it, 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. |
| └ 151.251.64.0/23 | 512 | A1-IXP | unknown | ASSIGNED PA | Sep 28, 2021 | 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
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
AS42157
BG
- Name
- A1 Bulgaria EAD
- Registered
- Dec 29, 2006
- 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 2021
- Current origin since
- Sep 2021 · 5.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.251.64.0/23 | AS42157 | /23 | 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 |
|---|---|---|---|---|
| AS42157 | RIPE | IXP | ORBITEL-NOC SPNET-MNT AS12716-MNT ROUTE-12716-MNT | Sep 28, 2021 |
Whois
Registration for this announcement
- Range
- 151.
251. 64. 0/ 23 - Netname
- A1-IXP
- Registrant country
- BG
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- Sep 28, 2021
- Updated
- Sep 28, 2021
- Maintainer
- SPNET-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