Data as of Nov 6, 2026
63.242.242.72/29
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, 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 |
|---|---|---|---|---|---|---|
| 63. | 196,608 | CERFNET-BLK-5 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Nov 3, 1999 | abuse@ |
| └ 63.242.242.72/29 | 8 | DSL-32228-242-72 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 63.242.0.0/16
- Prefix
- 63.242.0.0/16
- Announced by
- AS7018 AT&T Enterprises, LLC
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- CERFNET-BLK-5
- Registrant
- AT&T Enterprises, LLC
- RIR
- ARIN
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 63.242.0.0/16
63.242.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 63.242.0.0/16 | AS7018 | /16 | ARIN | RPKI valid |
IRR
Route objects on 63.242.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7018 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Jul 21, 2025 |
Whois
Registration for this announcement
- Range
- 63.
240. 0. 0 - 63. 242. 255. 255 - Netname
- CERFNET-BLK-5
- Registrant
- AT&T Enterprises, LLC
- Organization
- AT&T Enterprises, LLC (AEL-360)
- Org address
- 208 S. Akard St., Dallas, TX, 75202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-63-240-0-0-1
- Parent
- NET-63-0-0-0-0
- Created
- Nov 3, 1999
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 3, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN