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Data as of Nov 15, 2026

204.8.152.0/21

1 anonymizer address · 0.05% · Tor exit15 residential-proxy exits · 30 days

Boston GigaPoP · space held by Boston University

Announcement
this exact prefix
No RPKI
Announced by
AS10961
Type
Business
>99% of it

Residential-proxy exits

Proxy exits
15
0.73% of its addresses · 30 days
Always-on exits
10
67% of its exits
Spread
2 of 8
/24s with at least one exit
Providers
41
selling exits here
Oct 16, 2026 – Nov 14, 2026

Exits seen per day

13K observations
  • Tor exit · anonymizer
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
204.8.158.0/241012
204.8.153.0/2402

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • BirdProxies
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • ColaProxy
  • Decodo
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonode
  • GonzoProxy
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • LemonBright
  • MangoProxy
  • NovaProxy
  • Oxylabs
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • ProxyWing
  • Proxyma
  • RainProxy
  • ResiProxies
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
IPv4 market

Path

1 · Holder
Boston University
record created Jul 27, 2004
2 · Leased from
not leased
3 · Announced by
AS10961 Boston GigaPoP
since Apr 2020 · 6.6 yr ago
4 · Use
named Tor
Business

Operators, sellers and brokers

Tor

NameParentIn 204.8.152.0/21/24s
TorThe Tor Project
10.05%
1

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

204.8.152.0/21

From the registry to its use

  1. Jul 27, 2004
    Registry record
    Boston University
    Direct Allocation
    204.8.152.0/21
  2. May 9, 2005– Apr 19, 2020
    Announced
    AS111 Boston University
    Education
  3. Apr 8, 2020– today
    Announced
    AS10961 Boston GigaPoP
    Education
  4. Jun 17, 2025
    Route object
    AS198949 Radware Ltd
    RADB route object for AS198949 Radware Ltd, maintainer MAINT-AS198949
  5. Feb 4, 2026
    Route object
    AS10961 Boston GigaPoP
    RADB route object for AS10961 Boston GigaPoP, maintainer MAINT-AS111
  6. today
    Used
    Tor
    Tor

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Business2,047>99%2
Tor exitanonymizer10.05%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
Apr 2020 · 6.6 yr
Origin networks
2
Last change of origin
Apr 2020
Recorded history

History

Handoffs
1