LIVE
5 ASNS PEERINGIPv4 1.079.968 PREFIXESIPv6 241.948 PREFIXESRPKI 1.003.789 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
Run a probe
RASAT / AS

AS19739

County of San Bernardino
27 announcements3 upstreams3 peers
TIER 1County of San BernardinoCOUNTY-SANBERNARDINOAS19739Frontier Communications of America, Inc.FRONTIER-FRTRAS5650Charter Communications IncTWC-20001-PACWESTAS20001Charter Communications IncTWC-7843-BBAS7843Charter Communications LLCCHARTER-20115AS20115Hurricane Electric LLCHURRICANEAS6939Cogent Communications, LLCCOGENT-174AS174Arelion Sweden ABTWELVE99AS1299Level 3 Parent, LLCLEVEL3AS3356PCCW Global (HK) Ltd.PCCWG-APAC-HKAS3491China Education and Research Network (CERNET)FITI-AS-APAS38255
UPSTREAMS3
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS3356Level 3 Parent, LLC✓✗84
AS5650Frontier Communications of America, Inc.✓✗12
AS20001Charter Communications Inc✓✗12

The figures come from the routing tables our peers give us. This number is seen from 4 separate vantage points. A peer that shares an internet exchange with this network and carries only a small share of its paths is not counted as an upstream: a transit provider carries the whole table, an IX peer only its own announcements. Internet exchange data comes from PeeringDB. Figures are from a dump taken 7 hours ago.