This is the undirected network of autonomous system on the Internet connected to each other, from the Skitter project.


Internal nameas-skitter
Data source
AvailabilityDataset is available for download
Consistency checkDataset passed all tests
Computer network
Node meaningAutonomous system
Edge meaningConnection
Network formatUnipartite, undirected
Edge typeUnweighted, no multiple edges
LoopsDoes not contain loops


Size n =1,696,415
Volume m =11,095,298
Loop count l =0
Wedge count s =16,021,665,681
Claw count z =96,557,738,585,948
Cross count x =600,795,229,914,113,920
Triangle count t =28,769,868
Square count q =62,769,198,018
4-Tour count T4 =566,262,437,464
Maximum degree dmax =35,455
Average degree d =13.080 9
Fill p =7.710 90 × 10−6
Size of LCC N =1,694,616
Diameter δ =31
50-Percentile effective diameter δ0.5 =4.499 30
90-Percentile effective diameter δ0.9 =5.851 31
Median distance δM =5
Mean distance δm =5.036 87
Gini coefficient G =0.696 474
Balanced inequality ratio P =0.233 354
Relative edge distribution entropy Her =0.889 471
Power law exponent γ =1.610 77
Tail power law exponent γt =2.291 00
Degree assortativity ρ =−0.081 420 1
Degree assortativity p-value pρ =0.000 00
Clustering coefficient c =0.005 387 06
Spectral norm α =670.349
Algebraic connectivity a =0.001 077 53
Non-bipartivity bA =0.030 448 1
Normalized non-bipartivity bN =0.001 329 05


Degree distribution

Cumulative degree distribution

Lorenz curve

Spectral distribution of the adjacency matrix

Spectral distribution of the normalized adjacency matrix

Spectral distribution of the Laplacian

Spectral graph drawing based on the adjacency matrix

Spectral graph drawing based on the Laplacian

Spectral graph drawing based on the normalized adjacency matrix

Hop distribution

Clustering coefficient distribution


Matrix decompositions plots



[1] Jérôme Kunegis. KONECT – The Koblenz Network Collection. In Proc. Int. Conf. on World Wide Web Companion, pages 1343–1350, 2013. [ http ]
[2] Jure Leskovec, Jon Kleinberg, and Christos Faloutsos. Graph evolution: Densification and shrinking diameters. ACM Trans. Knowl. Discov. from Data, 1(1):1–40, 2007.