Data as of Nov 5, 2026
208.23.136.0/24
No anonymizer space · no proxy exits in 30 daysSouthwest Texas Communications · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.0.0.0/11 | AS174 | Internet provider | 605 177 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 |
|---|---|---|---|---|---|---|
| 208. | 2,359,296 | COGC | Cogent Communications, LLC (COGC) · US | Direct Allocation | Mar 13, 1996 | abuse@ |
| └ 208.23.136.0/24 | 256 | FON-349120307254543 | Sidlinger Computer Corporation (SCC) · US | Reassigned | Jul 10, 2000 | sidlinger@ |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 208.
0. 0. 0 - 208. 35. 255. 255 - Registration type
- Direct Allocation
- Record created
- Mar 13, 1996
- Legacy
- yes
Origin network
AS46853
US
- Name
- Southwest Texas Communications
- Type
- Internet provider
- Registered
- Apr 3, 2009
- Domain
- swtexas.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Apr 2010 · 17 yr
- Origin networks
- 2
- Last change of origin
- Apr 2010
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 208.
23. 136. 0/ 24 - Netname
- FON-349120307254543
- Registrant
- Sidlinger Computer Corporation
- Organization
- Sidlinger Computer Corporation (SCC)
- Org address
- Post Office Box 3459, Manhattan Beach, CA, 90266
- Org country
- US
- Type
- Reassigned
- Handle
- NET-208-23-136-0-1
- Parent
- NET-208-0-0-0-1
- Created
- Jul 10, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 13, 1996
- Status
- assigned
Report abuse
Abuse contact
- sidlinger@
gmail. com - Name
- Sidlinger, Bruce
- Phone
- +1-210-344-4825
- Handle
- BS2119-ARIN