Data as of Nov 9, 2026
38.240.144.0/20
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 401,849 78,907 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 |
|---|---|---|---|---|
| 38.240.144.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.145.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.146.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.147.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.148.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.149.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.150.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.151.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.152.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.153.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.154.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.155.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.156.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.157.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.158.0/24 since May 2026 | AS174 | Internet provider | Cogent Communications, LLC | |
| 38.240.159.0/24 since May 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
- 1,623
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2019
- Current origin since
- May 2026 · 6 mo
- Origin networks
- 2
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 38.
0. 0. 0/ 8 - Netname
- COGENT-A
- 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-38-0-0-0-1
- Created
- Apr 16, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN