Data as of Nov 3, 2026
37.63.3.0/24
163 residential-proxy exits · 30 daysA1 Bulgaria EAD
Residential-proxy exits
Proxy exits
163
64% of its addresses · 30 days
Providers
74
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
6.0K observations
Proxy providers listing exits
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BestProxy
- BlurPath
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CatProxies
- CliProxy
- DataImpulse
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GeekProxy
- Geonode
- GloryCloud
- GoProxies
- IPCola
- IPFly
- IPOasis
- IPPeak
- IPRoyal
- InfiniteProxies
- KindProxy
- KocerRoxy
- Kookey
- LemonBright
- LudaxProxy
- MarsProxies
- NSocks
- NextProxy
- NiuProxy
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PSBProxy
- PacketStream
- PrivateByte
- PrivateProxy
- Proxies.fo
- Proxmint
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyRack
- ProxyWing
- Proxying
- PuraRoute
- RainProxy
- RapidProxy
- RolaProxy
- Shifter
- Smartproxy
- StrikeProxy
- SwiftProxy
- TalorData
- Thordata
- ThunderProxy
- VantageProxies
- VibeProxies
- VitalExclusive
- Webshare
- YumiProxy
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 37.63.0.0/17 since Dec 2019 | AS8717 | Residential | 8,585 101 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 |
|---|---|---|---|---|---|---|
| 37.63.0.0/17 | 32,768 | BG-MTELNET-20120123 | A1 Bulgaria EAD (ORG-MN1-RIPE) · BG | ALLOCATED PA | Jan 23, 2012 | [email protected] |
| └ 37.63.0.0/20 | 4,096 | A1-NGN | unknown | ASSIGNED PA | May 4, 2020 | [email protected] via BG-MTELNET-20120123 |
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 37.63.0.0/20
- Prefix
- 37.63.0.0/20
- Announced by
- AS12716 A1 Bulgaria EAD
- Type
- Mobile
- Proxy exits
- 2,628
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- A1-NGN
- RIR
- RIPE NCC
Registry
Holder
- Organization
- A1 Bulgaria EAD
- Handle
- ORG-MN1-RIPE
- Range
- 37.63.0.0/17
- Registration type
- ALLOCATED PA
- Record created
- Jan 23, 2012
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
37.63.0.0/20
Routing history
- Pattern
- Stable
- First seen
- Jun 2020
- Current origin since
- Apr 2021 · 5.6 yr
- Origin networks
- 2
- Last change of origin
- Apr 2021
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.63.0.0/20 | AS12716 | /20 | RIPE | RPKI valid |
| 37.63.0.0/17 | AS8717 | /17 | RIPE | Another network |
IRR
Route objects on 37.63.0.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS12716 | RIPE | A1BG_MSAV | SPNET-MNT AS12716-MNT | Oct 18, 2024 |
Whois
Registration for this announcement
- Range
- 37.63.0.0/20
- Netname
- A1-NGN
- Registrant country
- BG
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- May 4, 2020
- Updated
- May 4, 2020
- Maintainer
- AS13124-MNT
- RIR
- RIPE NCC
- Country
- BG
- Delegated
- Jan 23, 2012
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- A1 Bulgaria EAD Abuse
- Handle
- AR14215-RIPE