Data as of Nov 9, 2026
206.105.176.0/20
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 206.104.0.0/14 since May 2024 | AS174 | Internet provider | 17 2 always on | Cogent Communications, LLC |
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 |
|---|---|---|---|---|
| 206.105.176.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.177.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.178.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.179.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.180.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.181.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.182.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.183.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.184.0/24 since Mar 2026 | AS174 | Residential | Cogent Communications, LLC | |
| 206.105.185.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.186.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.187.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.188.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.189.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 206.105.190.0/24 since Mar 2026 | AS174 | Residential | Cogent Communications, LLC | |
| 206.105.191.0/24 since Mar 2026 | AS174 | Internet provider | Cogent Communications, LLC |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 3,584 | 88% | 14 | |
| Residential | 512 | 13% | 2 |
Network & registry
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
- 1,623
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 2
- Last change of origin
- Mar 2026
Recorded history
History
- Handoffs
- 1
- Also announced by
- 6372
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6372 not the origin | RADB | DCA Net | MAINT-AS27506 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 206.
104. 0. 0/ 14 - Netname
- COGENT-206-104-0
- 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-206-104-0-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Aug 15, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 15, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN