Data as of Nov 14, 2026
151.237.51.0/24
13 residential-proxy exits · 30 daysProlan Ltd. · space held by Passive Optical Networks FiberBG EOOD
Residential-proxy exits
Proxy exits
13
5.1% of its addresses · 30 days
Providers
23
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
459 observations
Proxy providers listing exits
- 711Proxy
- AnyIP
- BottingTools
- Bright Data
- DataImpulse
- Decodo
- FastProxy
- FloppyData
- GloryCloud
- LemonBright
- MangoProxy
- Novada
- Oxylabs
- Proxiware
- Proxy302
- PuraRoute
- RapidProxy
- Shifter
- Smartproxy
- Thordata
- ThunderProxy
- VitalExclusive
- Webshare
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 |
|---|---|---|---|---|---|---|
| 151.237.48.0/21 | 2,048 | BG-FIBERBG-20120816 | Passive Optical Networks FiberBG EOOD (ORG-PONF1-RIPE) · BG | ALLOCATED PA | Nov 8, 2022 | lir@ |
| └ 151.237.48.0/22 | 1,024 | BG-PROLAN | Prolan Ltd. | ASSIGNED PA | Nov 1, 2018 | lir@ via BG-FIBERBG-20120816 |
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 151.237.48.0/21
- Prefix
- 151.237.48.0/21
- Announced by
- AS48181 Prolan Ltd.
- Type
- Residential
- Proxy exits
- 98
- Always-on exits
- 9
- RPKI
- RPKI valid
- Netname
- BG-FIBERBG-20120816
- Registrant
- Passive Optical Networks FiberBG EOOD
- RIR
- RIPE NCC
Origin network
AS48181
BG
- Name
- Prolan Ltd.
- Type
- Internet provider
- Registered
- Oct 22, 2008
- Domain
- prolan.bg
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 151.237.48.0/21
151.237.48.0/21
Routing history
- Pattern
- Stable
- First seen
- Sep 2012
- Current origin since
- Sep 2012 · 14 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.237.48.0/21 | AS48181 | /21 | RIPE | RPKI valid |
IRR
Route objects on 151.237.48.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS48181 | RIPE | PROLAN Ltd. | IPACCT-MNT | Aug 30, 2012 |
Whois
Registration for this announcement
- Range
- 151.
237. 48. 0/ 21 - Netname
- BG-FIBERBG-20120816
- Registrant
- Passive Optical Networks FiberBG EOOD
- Registrant country
- BG
- Organization
- Passive Optical Networks FiberBG EOOD (ORG-PONF1-RIPE)
- Org country
- BG
- Type
- ALLOCATED PA
- Created
- Nov 8, 2022
- Updated
- Nov 8, 2022
- Maintainer
- bg-fiberbg-1-mnt
- RIR
- RIPE NCC
- Country
- BG
- Delegated
- Aug 16, 2012
- Status
- assigned
Report abuse
Abuse contact
- lir@
fiberbg. net - Name
- Abuse-C Role
- Handle
- AR46021-RIPE