Data as of Nov 7, 2026
66.102.120.0/21
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 66.102.120.0/24 since Sep 2026 | AS174 | Residential | Cogent Communications, LLC | |
| 66.102.121.0/24 since Sep 2026 | AS174 | Residential | Cogent Communications, LLC | |
| 66.102.122.0/24 since Sep 2026 | AS174 | Unknown | Cogent Communications, LLC | |
| 66.102.123.0/24 since Sep 2026 | AS174 | Unknown | Cogent Communications, LLC | |
| 66.102.124.0/24 since Sep 2026 | AS174 | Unknown | Cogent Communications, LLC | |
| 66.102.125.0/24 since Sep 2026 | AS174 | Unknown | Cogent Communications, LLC | |
| 66.102.126.0/24 since Sep 2026 | AS174 | Unknown | Cogent Communications, LLC | |
| 66.102.127.0/24 since Sep 2026 | AS174 | Unknown | 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 |
|---|---|---|---|---|---|---|
| 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.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 1,536 | 75% | 6 | |
| Residential | 512 | 25% | 18 |
Network & registry
Announced by
Covering announcement 66.102.96.0/19
- Prefix
- 66.102.96.0/19
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Proxy exits
- 19
- Always-on exits
- 1
- RPKI
- No RPKI
- Netname
- COGENT-ANET-0004
- Registrant
- Cogent Communications, LLC
- RIR
- ARIN
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
Who has announced 66.102.96.0/19
66.102.96.0/19
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Nov 2009 · 17 yr
- Origin networks
- 2
- Last change of origin
- Nov 2009
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 66.
102. 96. 0/ 19 - Netname
- COGENT-ANET-0004
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-102-96-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Jul 10, 2002
- 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