Data as of Nov 9, 2026

209.188.131.0/24

No anonymizer space · no proxy exits in 30 days

CENIC · space held by San Mateo County Office of Education

Announcement
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Network & registry

Announced by

Covering announcement 209.188.128.0/17

Prefix
209.188.128.0/17
Announced by
AS2152 CENIC
Type
Business
RPKI
No RPKI
Netname
SMCOENET4
Registrant
San Mateo County Office of Education
RIR
ARIN
Origin network

AS2152

US
Name
CENIC
Type
Education
Registered
Jul 8, 2024
Domain
cenic.org
Website
cenic.org
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed