Data as of Nov 12, 2026
66.6.210.0/24
No anonymizer space · no proxy exits in 30 daysTierzero
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 |
|---|---|---|---|---|---|---|
| 66.6.208.0/20 | 4,096 | TIERZERO-700LA | Tierzero (TIERZ) · US | Direct Allocation | Feb 23, 2004 | abuse@ |
| └ 66.6.210.0/24 | 256 | TIERZERO-1107743232 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 66.6.208.0/20
- Prefix
- 66.6.208.0/20
- Announced by
- AS11509 Tierzero
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- TIERZERO-700LA
- Registrant
- Tierzero
- RIR
- ARIN
Origin network
AS11509
US
- Name
- Tierzero
- Type
- Internet provider
- Registered
- Sep 15, 1998
- Domain
- tierzero.com
- Website
- www.tierzero.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 66.6.208.0/20
66.6.208.0/20
Routing history
- Pattern
- Stable
- First seen
- Oct 2007
- Current origin since
- Oct 2007 · 19 yr
- Origin networks
- 1
IRR
Route objects on 66.6.208.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS11509 | RADB | Tierzero | MAINT-AS11509 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.
6. 208. 0/ 20 - Netname
- TIERZERO-700LA
- Registrant
- Tierzero
- Organization
- Tierzero (TIERZ)
- Org address
- 77 N Mentor Ave, Pasadena, CA, 91106
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-6-208-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Feb 23, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 23, 2004
- Status
- assigned
Report abuse
Abuse contact
- abuse@
tierzero. com - Name
- Abuse Department
- Phone
- +1-213-784-1400
- Handle
- ABUSE3154-ARIN