Data as of Nov 9, 2026
154.21.110.0/23
Anonymizer · ISP proxyCogent Communications, LLC
IPv4 market
Path
2 · Leased from
not leased
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 154.21.110.0/23 | /24s |
|---|---|---|---|
| Webshare | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
154.21.110.0/23
From the registry to its use
- Feb 5, 1992Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)154.21.0.0/16
- Sep 10, 2018– today
- May 4, 2022– today
- todayUsedWebshareProxy seller
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Operator | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|---|
| 154.21.0.0/16 since Sep 2018 | AS174 | Internet provider | 1,2802.0%ISP proxy, VPN | Proxy providersoperated by High ProxiesVPN servicesoperated by TorGuard | 292 46 always on | Cogent Communications, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 154.21.0.0/16 | 65,536 | COGENT-154-21-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
| └ 154.21.110.0/24 | 256 | NET-154-21-110-0-1 | Ping Technology Labs LTD (C07695861) · GB | Reassigned | Nov 27, 2020 | abuse@ via COGENT-154-21-16 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
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
- Stable
- First seen
- May 2022
- Current origin since
- May 2022 · 4.5 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 154.
21. 0. 0/ 16 - Netname
- COGENT-154-21-16
- 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-154-21-0-0-1
- Parent
- NET-154-0-0-0-0
- Created
- Feb 5, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN