Data as of Nov 6, 2026
135.197.0.0/16
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC · space held by AT&T Services, Inc.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 135.197.0.0/17 since Oct 2023 | AS6431 | Business | AT&T Services, Inc. | |
| 135.197.128.0/17 since Oct 2023 | AS6431 | Business | AT&T Services, Inc. |
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 |
|---|---|---|---|---|---|---|
| 135. | 786,432 | ATT-135-197-219-B | AT&T Services, Inc. (ATTSE-Z) · US | Direct Allocation | Apr 30, 1996 | abuse@ |
| └ 135.197.0.0/16 | 65,536 | ATT-135-197-B | AT&T Labs (ATTLAB-1) · US | Reassigned | Jun 23, 1997 | — |
Network & registry
IPv4 market
Holder
- Organization
- AT&T Services, Inc.
- Handle
- ATTSE-Z
- Range
- 135.
197. 0. 0 - 135. 208. 255. 255 - Registration type
- Direct Allocation
- Record created
- Apr 30, 1996
- Legacy
- yes
Origin network
AS6431
US
- Name
- AT&T Enterprises, LLC
- Type
- Business
- Registered
- Apr 12, 1996
- Domain
- att.com
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2006 · 20 yr
- Origin networks
- 2
- Last change of origin
- Dec 2006
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 135.
197. 0. 0/ 16 - Netname
- ATT-135-197-B
- Registrant
- AT&T Labs
- Organization
- AT&T Labs (ATTLAB-1)
- Org address
- 2665 North First St., Suite 300, San Jose, CA, 95134
- Org country
- US
- Type
- Reassigned
- Handle
- NET-135-197-0-0-2
- Parent
- NET-135-197-0-0-1
- Created
- Jun 23, 1997
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 30, 1996
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN