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Data as of Nov 3, 2026

37.63.48.0/21

115 residential-proxy exits · 30 days

A1 Bulgaria EAD

Announcement
37.63.0.0/17
RPKI valid
Announced by
AS8717
Type
Residential

Residential-proxy exits

Proxy exits
115
5.6% of its addresses · 30 days
Always-on exits
10
8.7% of its exits
Spread
8 of 8
/24s with at least one exit
Providers
89
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

30K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.63.53.0/24216
37.63.51.0/2429
37.63.52.0/24118
37.63.55.0/24118
37.63.54.0/24116
37.63.48.0/24113
37.63.50.0/24113
37.63.49.0/24112

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BestProxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • Maskify
  • MoMoProxy
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PrivateByte
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxyma
  • PuraRoute
  • Q2IP
  • RainProxy
  • RapidProxy
  • RoamProxy
  • RolaProxy
  • Shifter
  • Smartproxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • Webshare

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
37.63.48.0/24
since Apr 2023
AS29580Residential13
1 always on
A1 Bulgaria EAD
37.63.49.0/24
since Apr 2023
AS29580Residential12
1 always on
A1 Bulgaria EAD
37.63.50.0/24
since Mar 2023
AS29580Residential13
1 always on
A1 Bulgaria EAD
37.63.51.0/24
since Mar 2023
AS29580Residential9
2 always on
A1 Bulgaria EAD
37.63.52.0/24
since Mar 2023
AS29580Residential18
1 always on
A1 Bulgaria EAD
37.63.53.0/24
since Mar 2023
AS29580Residential16
2 always on
A1 Bulgaria EAD
37.63.54.0/24
since Mar 2023
AS29580Residential16
1 always on
A1 Bulgaria EAD
37.63.55.0/24
since Mar 2023
AS29580Residential18
1 always on
A1 Bulgaria EAD

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
37.63.0.0/1732,768BG-MTELNET-20120123A1 Bulgaria EAD (ORG-MN1-RIPE) · BGALLOCATED PAJan 23, 2012[email protected]
└ 37.63.48.0/212,048GPON-VelikoTarnovo-North-1GPON ServicesASSIGNED PAOct 17, 2012[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

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 37.63.0.0/17

Prefix
37.63.0.0/17
Announced by
AS8717 A1 Bulgaria EAD
Type
Residential
Proxy exits
8,585
Always-on exits
101
RPKI
RPKI valid
Netname
BG-MTELNET-20120123
Registrant
A1 Bulgaria EAD
RIR
RIPE NCC
Origin network

AS8717

BG
Name
A1 Bulgaria EAD
Type
Internet provider
Registered
Mar 19, 1998
Domain
a1.bg
Website
www.a1.bg
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed