Data as of Nov 3, 2026
66.136.40.0/24
No anonymizer space · no proxy exits in 30 daysFrost Bank · space held by AT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.136.0.0/13 since Oct 2013 | AS7018 | Residential | 2,464 58 always on | AT&T Enterprises, 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 |
|---|---|---|---|---|---|---|
| 66.136.0.0/13 | 524,288 | SBCIS-SIS80 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Jun 5, 2001 | [email protected] |
| └ 66.136.40.0/24 | 256 | SBC06613604000024041008140923 | Frost National Bank (C00926484) · US | Reassigned | Oct 8, 2004 | [email protected] via SBCIS-SIS80 |
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
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 66.136.0.0/13
- Registration type
- Direct Allocation
- Record created
- Jun 5, 2001
Origin network
AS18674
US
- Name
- Frost Bank
- Type
- Business
- Registered
- Sep 27, 2000
- Domain
- frostbank.com
- Industry
- Banks, Credit Card Companies, Mortgage Providers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2009
- Current origin since
- Nov 2009 · 17 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS18674 | RADB | RR-RC-Frost National Bank-Austin | MAINT-RR | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.136.40.0/24
- Netname
- SBC06613604000024041008140923
- Registrant
- Frost National Bank
- Organization
- Frost National Bank (C00926484)
- Type
- Reassigned
- Handle
- NET-66-136-40-0-1
- Parent
- NET-66-136-0-0-1
- Created
- Oct 8, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 5, 2001
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN