Unicom CUG
Unicom's global egress
CUG stands for China Unicom Global; RIPE records the holder as UNICOM-Global under AS10099. When a vendor writes "CN2 GIA / CMI / CUG three-carrier direct", CUG names this segment. For Unicom subscribers it is far steadier than ordinary international egress; for Telecom and Mobile users it is simply another international hop — and where all three coexist on one box, only the one matching your own carrier is worth anything. The ratings are editorial, based on how vendors describe the line; we have not measured it box by box.
Who it suits
Unicom broadband, and only on products whose vendor explicitly names CUG. Do not assume an unnamed "Unicom optimised" line is this one.
How to verify it
Look for the AS10099 segment in the return path. Three different networks share the name "Unicom line": CUG is AS10099, 9929 is AS9929 (Unicom's industrial internet backbone), and the 169 network is AS4837. Different AS numbers mean different networks.
Questions
Are CUG and 9929 the same?
No. AS10099 is Unicom's global egress; AS9929 is Unicom's industrial internet backbone. They are different segments and often both appear in a route trace. When a vendor writes "Unicom optimised", only the return path tells you which one you got.
Can CUG substitute for CN2?
Not on your bill. CN2 GIA is a Telecom product and CUG is Unicom's; they serve different subscribers. A Telecom connection tracing through CUG has simply taken an extra international hop.
Vendors on this route
No vendor on the shortlist has a page of its own for this route yet.
The shortlist also lists 1 more operator on this route, without a page of their own. See the full shortlist →
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