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Data as of Nov 3, 2026

205.243.72.0/23

4 residential-proxy exits · 30 days

Montana Opticom, LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS11924
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
4
0.78% of its addresses · 30 days
Spread
2 of 2
/24s with at least one exit
Providers
6
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

67 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
205.243.72.0/2402
205.243.73.0/2402

Proxy providers listing exits

  • AnyIP
  • FastProxy
  • FloppyData
  • LemonBright
  • RainProxy
  • Shifter

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
205.240.0.0/13AS174Internet provider33
3 always on
Cogent Communications, LLC

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
205.240.0.0/13524,288COGENT-205-240-0Cogent Communications, LLC (COGC) · USDirect AllocationApr 24, 1995[email protected]
└ 205.243.72.0/23512SPRINT-CDF348Bridgeband Communications (BRIDGE-19) · USReassignedSep 14, 1999—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
205.240.0.0/13
Registration type
Direct Allocation
Record created
Apr 24, 1995
Legacy
yes
Origin network

AS11924

US
Name
Montana Opticom, LLC
Type
Internet provider
Registered
Mar 6, 2007
Domain
mt-opticom.com
Website
mt-opticom.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed