Data as of Nov 14, 2026
154.12.248.0/21
5 residential-proxy exits · 30 daysCogent Communications, LLC
Residential-proxy exits
Proxy exits
5
0.24% of its addresses · 30 days
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
50 observations
IPv4 market
Path
1 · Holder
2 · Leased from
4 · Use
Hosting
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 154.12.248.0/22 since Apr 2022 | AS40021 | Hosting | Cogent Communications, LLC | |
| 154.12.252.0/22 since Apr 2022 | AS40021 | Hosting | 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 |
|---|---|---|---|---|---|---|
| 154.12.0.0/16 | 65,536 | COGENT-154-12-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
Network & registry
Announced by
Covering announcement 154.12.0.0/15
- Prefix
- 154.12.0.0/15
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Leased from
- IP broker Aventice (part)
- Proxy exits
- 657
- Always-on exits
- 172
- RPKI
- No RPKI
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Not stated by the 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
- 2,366
Routing timeline
Who has announced 154.12.0.0/15
154.12.0.0/15
Routing history
- Pattern
- Stable
- First seen
- Jan 2007
- Current origin since
- Jan 2007 · 20 yr
- Origin networks
- 1
Whois
Registration for this announcement
154.12.0.0/15 spans several registrations: 50 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned