Data as of Nov 10, 2026
205.136.0.0/16
No anonymizer space · no proxy exits in 30 daysCenturyLink 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 |
|---|---|---|---|---|---|---|
| 205.136.0.0/16 | 65,536 | CENTURYLINK-LEGACY-SAVVIS-BLK183 | CenturyLink Communications, LLC (CCL-534) · US | Direct Allocation | Feb 13, 1995 | abuse@ |
| └ 205.136.0.0/16 | 65,536 | PROJECT-DEMETER | Centurylink, Inc. (CENTU-195) · US | Reassigned | Apr 5, 2023 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- CenturyLink Communications, LLC
- Handle
- CCL-534
- Range
- 205.
136. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 13, 1995
- Legacy
- yes
Origin network
AS3561
US
- Name
- CenturyLink Communications, LLC
- Type
- Internet provider
- Registered
- Oct 7, 1998
- Domain
- lumen.com
- Website
- www.lumen.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jun 2025 · 1.4 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 205.136.0.0/16 | AS3561 | /16 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 205.
136. 0. 0/ 16 - Netname
- PROJECT-DEMETER
- Registrant
- Centurylink, Inc.
- Organization
- Centurylink, Inc. (CENTU-195)
- Org address
- 100 CENTURYLINK DR., Monroe, LA, 71203
- Org country
- US
- Type
- Reassigned
- Handle
- NET-205-136-0-0-2
- Parent
- NET-205-136-0-0-1
- Created
- Apr 5, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 13, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
aup. lumen. com - Name
- Centurylink Abuse Desk
- Phone
- +1-877-886-6515
- Handle
- CAD54-ARIN