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Data as of Nov 6, 2026

204.85.176.0/20

3 anonymizer addresses · 0.07% · Tor exit3 residential-proxy exits · 30 days

University of North Carolina at Chapel Hill · space held by MCNC

Announcement
this exact prefix
RPKI valid
Announced by
AS36850
Type
Business
>99% of it

Residential-proxy exits

Proxy exits
3
0.07% of its addresses · 30 days
Spread
1 of 16
/24s with at least one exit
Providers
17
selling exits here
Oct 7, 2026 – Nov 5, 2026

Exits seen per day

11 observations

Proxy providers listing exits

  • Ake.net
  • BottingTools
  • EZProxies
  • EnigmaProxy
  • FloppyData
  • IPFly
  • Infatica
  • MoMoProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PacketStream
  • ProxyEmpire
  • PuraRoute
  • Thordata
  • ThunderProxy
  • VitalExclusive
IPv4 market

Path

1 · Holder
MCNC
record created Jun 30, 1994
2 · Leased from
not leased
3 · Announced by
AS36850 University of North Carolina at Chapel Hill
since Sep 2015 · 11.2 yr ago
4 · Use
named Tor
Business

Operators, sellers and brokers

Tor

NameParentIn 204.85.176.0/20/24s
TorThe Tor Project
30.07%
1

Lineage

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

204.85.176.0/20

From the registry to its use

  1. Jun 30, 1994
    Registry record
    MCNC
    Direct Allocation (legacy, pre-1997)
    204.84.0.0/15
  2. May 9, 2005– today
    Announced
    AS81 MCNC
    as part of 204.84.0.0/15
    204.84.0.0/15
  3. Sep 1, 2015– today
    Announced
    AS36850 University of North Carolina at Chapel Hill
    Education
  4. Oct 29, 2019
    Assigned
    University of North Carolina at Chapel Hill
    Reassigned
    204.85.176.0/20
  5. Mar 4, 2022
    Route object
    AS36850 University of North Carolina at Chapel Hill
    ARIN route object for AS36850 University of North Carolina at Chapel Hill, maintainer MNT-MCNC-Z
  6. today
    Used
    Tor
    Tor

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
204.84.0.0/15
since May 2005
AS81Business81
2 always on
MCNC
More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
204.85.191.0/24
since Jul 2017
AS36850Business31.2%Tor exitoperated by Tor3MCNC

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
204.84.0.0/15131,072NCREN-CIDR3MCNC (MCNC-Z) · USDirect AllocationJun 30, 1994abuse@mcnc.org
└ 204.85.176.0/204,096UNCCH-NCREN-IPV4-3University of North Carolina at Chapel Hill (UNC-1) · USReassignedOct 29, 2019security@unc.edu

Composition

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

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Business4,093>99%3
Tor exitanonymizer30.07%3

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
MCNC
Handle
MCNC-Z
Range
204.84.0.0/15
Registration type
Direct Allocation
Record created
Jun 30, 1994
Legacy
yes
Origin network

AS36850

US
Name
University of North Carolina at Chapel Hill
Type
Education
Registered
May 15, 2006
Domain
unc.edu
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed
Tor exits
3