Data as of Nov 4, 2026
65.166.223.0/24
Anonymizer · ISP proxyTelstra Global · space held by Cogent Communications, LLC
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 65.166.223.0/24 | /24s |
|---|---|---|
| Rackdog | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 65.166.223.0/24 | /24s |
|---|---|---|
| Cogent Communications, LLC | 256100% | 1 |
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 65.160.0.0/13 | AS174 | Internet provider | 76 4 always on | Cogent Communications, LLC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 65. | 917,504 | COGC | Cogent Communications, LLC (COGC) · US | Direct Allocation | Sep 19, 2000 | abuse@ |
| └ 65.166.192.0/19 | 8,192 | RACKDOG-CGNT-NET-133 | RCN (C11605380) · US | Reassigned | May 27, 2026 | abuse@ via COGC |
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
Announced by
Covering announcement 65.166.192.0/19
- Prefix
- 65.166.192.0/19
- Announced by
- AS4637 Telstra Global
- Type
- ISP proxy
- Anonymizer addresses
- all
- Leased from
- IP broker Rackdog
- RPKI
- No RPKI
- Netname
- RACKDOG-CGNT-NET-133
- Registrant
- RCN
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 65.
160. 0. 0 - 65. 173. 255. 255 - Registration type
- Direct Allocation
- Record created
- Sep 19, 2000
Origin network
AS4637
HK
- Name
- Telstra Global
- Type
- Internet provider
- Registered
- Oct 30, 1995
- Domain
- telstrainternational.com
- Website
- www.telstrainternational.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
65.166.192.0/19
Routing history
- Pattern
- Stable
- First seen
- Dec 2025
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 65.
166. 192. 0/ 19 - Netname
- RACKDOG-CGNT-NET-133
- Registrant
- RCN
- Organization
- RCN (C11605380)
- Type
- Reassigned
- Handle
- NET-65-166-192-0-1
- Parent
- NET-65-160-0-0-1
- Created
- May 27, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 19, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN