Data as of Nov 12, 2026
208.4.80.0/21
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Internet provider
Recent change
New origin Sep 2026
from AS15142 Automated Data Systems, Inc
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 208.0.0.0/11 | AS174 | Internet provider | IP broker Rackdog (part) | 609 179 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 |
|---|---|---|---|---|
| 208.4.80.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.81.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.82.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.83.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.84.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.85.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.86.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 208.4.87.0/24 since Sep 2026 | AS174 | Internet provider | Cogent Communications, LLC |
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
- 2,094
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 208.
0. 0. 0 - 208. 35. 255. 255 - Netname
- COGC
- 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-208-0-0-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Mar 13, 1996
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 13, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN