AS39983 Pension Benefit Guaranty Corp.

PBGC-HQ-AS - Pension Benefit Guaranty Corp. · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#11,532largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#51,375of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS39983 in ASN lookup Look up an IP in this network (208.68.128.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

208.68.128.0/23

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ASNNameIPv4 addresses

AS36852#11529 SERVIT - SERVIT, INC.512

AS36860#11530 BANCFIRST - BancFirst512

AS39978#11531 REED-SMITH-ASN - REED SMITH LLP512

AS39985#11533 RACKROOM-SHOES - Rack Room Shoes512

AS39990#11534 BCG - Boulder County Government512

AS40000#11535 NOBLIS-AUTONOMOUS-SYSTEM - Noblis, Inc.512

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