Data as of Nov 8, 2026
66.102.121.0/24
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Residential
Recent change
New origin Sep 2026
from AS174 Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.102.96.0/19 since Nov 2009 | AS174 | Internet provider | 19 1 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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 66.102.96.0/19 | 8,192 | COGENT-ANET-0004 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Jul 10, 2002 | abuse@ |
| └ 66.102.120.0/21 | 2,048 | MANSOORAH-CGNT-NET-1 | Mansoorah Telecommunications Company Pvt Ltd (C11407076) · PK | Reassigned | Oct 30, 2025 | abuse@ via COGENT-ANET-0004 |
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
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 66.
102. 96. 0/ 19 - Registration type
- Direct Allocation
- Record created
- Jul 10, 2002
Origin network
AS174
US
- Name
- Cogent Communications, LLC
- Type
- Internet provider
- Registered
- May 16, 1996
- Domain
- cogentco.com
- Website
- www.cogentco.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1,658
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2025
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 4
- Last change of origin
- Feb 2026
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 66.
102. 120. 0/ 21 - Netname
- MANSOORAH-CGNT-NET-1
- Registrant
- Mansoorah Telecommunications Company Pvt Ltd
- Organization
- Mansoorah Telecommunications Company Pvt Ltd (C11407076)
- Type
- Reassigned
- Handle
- NET-66-102-120-0-1
- Parent
- NET-66-102-96-0-1
- Created
- Oct 30, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 10, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN