AS10497 IBRD

WORLDBANK - IBRD · registered in the United States

IPv4 addresses134,14416 prefixes · 0.004% of announced IPv4

Rank in United States#452largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,460of 79,396 networks with IPv4

IPv64,096 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS10497 in ASN lookup Look up an IP in this network (138.220.0.1) All networks in United States

IPv4 prefixes

All 16 prefixes, in address order.

138.220.0.0/22
138.220.4.0/23
138.220.6.0/23
138.220.8.0/21
138.220.16.0/20
138.220.32.0/19
138.220.64.0/18
138.220.128.0/17
164.114.0.0/16
192.86.97.0/24
192.86.98.0/23
192.86.100.0/22
192.86.104.0/23
192.86.106.0/24
192.156.228.0/24
199.165.158.0/24

IPv6 prefixes

All 1 prefix.

2620:1ff::/36

Similar-sized networks in United States

ASNNameIPv4 addresses

AS19#449 LEIDOS-AS - Leidos, Inc.135,168

AS3701#450 LINK-OREGON - University of Oregon134,912

AS46475#451 LIMESTONENETWORKS - Limestone Networks, Inc.134,144

AS21693#453 BGP-ASN-21693 - Xcel Energy Inc.134,144

AS3724#454 ALASKA-ANET - State of Alaska133,888

AS7321#455 LNET-ASN - LocalNet Corporation133,888

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources