4.21.98.58

vpnfalseproxyfalsetorfalseabuserfalsebogonfalsedatacenterfalseanycastfalsemobilefalsesatellitefalsecrawlerfalse

Summary

IP address
4.21.98.58
Location
Washington D.C., District of Columbia, United States
ASN
AS3356 Level 3 Parent, LLC
IP range
4.0.0.0/9
Organization
Carnegie Institution of Washington at DC
AS type
isp
Abuse email
sdecarlo@pst.ciw.edu
Registry
arin
Privacy
false

Geolocation

Country
🇺🇸 United States
Region
District of Columbia
City
Washington D.C.
Coordinates
38.8722, -76.9663
Timezone
America/New_York
Last location change
Unknown
Local time
2026-10-28T16:34:50-04:00
EU member
no
Precision
region — geolocation_database

Network

ASN
AS3356
Organization
Level 3 Parent, LLC
Domain
lumen.com
Country
US
Route
4.0.0.0/9
Registry
arin
Normalized ASN type
isp
Last ASN change
Unknown

Registered network

Name
CIWDC-98-21
Type
reassignment
Network
4.21.98.0/24
Organization
Carnegie Institution of Washington at DC
Domain
pst.ciw.edu

Abuse contact

Name
Sonja DeCarlo
Email
sdecarlo@pst.ciw.edu
Phone
+1-202-939-1107;ext107
Address
Carnegie Institution of Washington at DC, 1530 P Street SE, Washington, DC, 20005, United States
Country
US

Registry arin · allocated 1992-12-01 · updated 2026-10-26