ResearchRouting table, RPKI, IRR & looking glass

AS19855 Masergy Communications, Inc.

AS19855 (MASERGY) is registered to Masergy Communications, Inc. in US. It originates 103 prefixes in the global routing table.

98
IPv4 prefixes
5
IPv6 prefixes
159,488
IPv4 addresses
3%
RPKI valid

Who holds AS19855

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS19855
Handle
MASERGY
Organization
Masergy Communications, Inc.
Country
US
ASPA
None published

What AS19855 announces

Prefixes originated by AS19855 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
98
IPv6 prefixes
5
IPv4 addresses
159,488 (623 /24s)
RPKI valid
4 3%
RPKI invalid
0
RPKI not found
99
ROAs naming AS19855
4
With an IRR route object
57 55%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (98)
IPv6 (5)

RPKI valid   RPKI invalid   no ROA covers it

Who AS19855 is reached through

The AS just before AS19855 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.