Data as of Nov 8, 2026
138.210.168.0/21
No anonymizer space · no proxy exits in 30 daysCenturyLink Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 138.210.128.0/17 since Jun 2016 | AS2379 | Residential | CenturyLink Communications, LLC | ||
| 138.210.0.0/16 since Jun 2016 | AS209 | Residential | 1 | CenturyLink 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 |
|---|---|---|---|---|---|---|
| 138.210.0.0/16 | 65,536 | CENTURYLINK-LEGACY-EMBARQ-BKL-11 | CenturyLink Communications, LLC (CCL-534) · US | Direct Allocation | May 30, 1990 | abuse@ |
| └ 138.210.168.168/29 | 8 | INSITUGROUPINC | unknown | — | — | — |
| └ 138.210.168.192/29 | 8 | 138-210-168-192-29 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 2,040 | >99% | 2 | |
| Business | 8 | 0.39% | 1 |
Network & registry
Origin network
AS14921
US
- Name
- CenturyLink Communications, LLC
- Type
- Internet provider
- Registered
- Sep 29, 2006
- Domain
- centurylink.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
- Oct 2007
- Current origin since
- Jan 2009 · 18 yr
- Origin networks
- 2
- Last change of origin
- Jan 2009
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 138.
210. 0. 0/ 16 - Netname
- CENTURYLINK-LEGACY-EMBARQ-BKL-11
- Registrant
- CenturyLink Communications, LLC
- Organization
- CenturyLink Communications, LLC (CCL-534)
- Org address
- 100 CENTURYLINK DR, Monroe, LA, 71201
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-138-210-0-0-1
- Parent
- NET-138-0-0-0-0
- Created
- May 30, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- May 30, 1990
- Status
- assigned
Report abuse
Abuse contact
- abuse@
aup. lumen. com - Name
- Centurylink Abuse Desk
- Phone
- +1-877-886-6515
- Handle
- CAD54-ARIN