Data as of Nov 3, 2026
63.77.23.0/24
No anonymizer space · no proxy exits in 30 daysSigma Aldrich Corporation · space held by Verizon Business
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 63.64.0.0/12 | AS701 | Internet provider | 323 44 always on | Verizon Business |
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 |
|---|---|---|---|---|---|---|
| 63.64.0.0/10 | 4,194,304 | UUNET63 | Verizon Business (MCICS) · US | Direct Allocation | Jan 22, 1999 | [email protected] |
| └ 63.77.23.0/24 | 256 | VZ-63-77-23-0 | Sigma Aldrich Corporation (SAC-10) · US | Reassigned | Jan 7, 2021 | — |
Network & registry
IPv4 market
Holder
- Organization
- Verizon Business
- Handle
- MCICS
- Range
- 63.64.0.0/10
- Registration type
- Direct Allocation
- Record created
- Jan 22, 1999
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
- Mar 2009
- Current origin since
- Mar 2009 · 18 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 63.77.23.0/24
- Netname
- VZ-63-77-23-0
- Registrant
- Sigma Aldrich Corporation
- Organization
- Sigma Aldrich Corporation (SAC-10)
- Org address
- 3050 Spruce, St. Louis, MO, 63103
- Org country
- US
- Type
- Reassigned
- Handle
- NET-63-77-23-0-1
- Parent
- NET-63-64-0-0-1
- Created
- Jan 7, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 22, 1999
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- abuse
- Phone
- +1-800-900-0241
- Handle
- ABUSE3-ARIN