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Data as of Nov 7, 2026

128.30.0.0/15

1 anonymizer address · <0.01% · Tor exit

Massachusetts Institute of Technology

Announcement
this exact prefix
No RPKI
Announced by
AS3
Type
Business
>99% of it

Residential-proxy exits

Proxy exits
5
<0.01% of its addresses · listed by providers
Always-on exits
2
40% of its exits
Spread
4 of 512
/24s with at least one exit
Providers
36
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
128.30.25.0/2411
128.31.0.0/2411
128.31.35.0/2402
128.31.33.0/2401

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • DataImpulse
  • EnigmaProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • GoProxies
  • GonzoProxy
  • IPOasis
  • Infatica
  • Kookey
  • LemonBright
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Oxylabs
  • PacketStream
  • Proxy-Seller
  • ProxyEmpire
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • Shifter
  • Thordata
  • VantageProxies
  • VitalExclusive
  • VitalProxy
IPv4 market

Path

1 · Holder
Unnamed holder
2 · Leased from
not leased
3 · Announced by
AS3 Massachusetts Institute of Technology
since Jul 2005 · 21.4 yr ago
4 · Use
named Tor
Business

Operators, sellers and brokers

Tor

NameParentIn 128.30.0.0/15/24s
TorThe Tor Project
1<0.01%
1

Lineage

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

128.30.0.0/15

From the registry to its use

  1. May 9, 2005– Jun 22, 2005
    Announced
    AS40 Massachusetts Institute of Technology
  2. Jul 1, 2005– today
    Announced
    AS3 Massachusetts Institute of Technology
    Education
  3. Apr 15, 2009
    Route object
    AS3 Massachusetts Institute of Technology
    RADB route object for AS3 Massachusetts Institute of Technology, maintainer MAINT-AS3
  4. May 13, 2022
    Route object
    AS46887 Crown Castle Fiber LLC
    RADB route object for AS46887 Crown Castle Fiber LLC, maintainer MAINT-AS27506
    128.30.0.0/16
  5. Jun 17, 2025
    Route object
    AS198949 Radware Ltd
    RADB route object for AS198949 Radware Ltd, maintainer MAINT-AS198949
  6. today
    Used
    Tor
    Tor

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
128.30.0.0/1665,536MIT-NETMassachusetts Institute of Technology (MIT-2) · USDirect AllocationMay 27, 1983arin-mit-security@mit.edu
128.31.0.0/1665,536MIT-RESMassachusetts Institute of Technology (MIT-2) · USDirect AllocationMay 27, 1983arin-mit-security@mit.edu

Composition

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

Announced space

Address share

Announced space

Types across the prefix

131,072 addresses
TypeAddressesShareRanges
Business131,071>99%3
Tor exitanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Not stated by the registry
Origin network

AS3

US
Name
Massachusetts Institute of Technology
Type
Education
Domain
mit.edu
Website
mit.edu
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed
Tor exits
1