Data as of Nov 10, 2026
205.219.230.0/24
No anonymizer space · no proxy exits in 30 daysSigma Aldrich Corporation · reallocated from CenturyLink Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 205.219.224.0/19 since Oct 2018 | AS3561 | Internet provider | CenturyLink Communications, LLC | |
| 205.218.0.0/15 since May 2005 | AS3561 | Internet provider | 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 |
|---|---|---|---|---|---|---|
| 205.218.0.0/15 | 131,072 | CENTURYLINK-LEGACY-SAVVIS-BLK173 | CenturyLink Communications, LLC (CCL-534) · US | Direct Allocation | Apr 10, 1995 | abuse@ |
| └ 205.219.230.0/24 | 256 | SAVV-S615569-0 | Sigma-Aldrich Corporation (SC-363) · US | Reallocated | Jan 7, 2013 | — |
Network & registry
IPv4 market
Holder
- Organization
- CenturyLink Communications, LLC
- Handle
- CCL-534
- Range
- 205.
218. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Apr 10, 1995
- Legacy
- yes
- Reallocated to
- Sigma-Aldrich Corporation (SC-363)
- Reallocated range
- 205.
219. 230. 0/ 24 - Reallocated
- Jan 7, 2013
Origin network
AS14109
US
- Name
- Sigma Aldrich Corporation
- Type
- Business
- Registered
- May 11, 2020
- Domain
- sigma-aldrich.com
- Industry
- Chemical and Pharmaceutical Manufacturing
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2020
- Current origin since
- Jul 2020 · 6.4 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 205.
219. 230. 0/ 24 - Netname
- SAVV-S615569-0
- Registrant
- Sigma-Aldrich Corporation
- Organization
- Sigma-Aldrich Corporation (SC-363)
- Org address
- 3050 Spruce Stree, ST. Louis, MO, 63103
- Org country
- US
- Type
- Reallocated
- Handle
- NET-205-219-230-0-1
- Parent
- NET-205-218-0-0-1
- Created
- Jan 7, 2013
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 10, 1995
- Status
- assigned
Report abuse
Abuse contact
- jim.
adams@ sial. com - Name
- Adams, Jim
- Phone
- +1-800-325-3010
- Handle
- ADAMS174-ARIN