AS398499 SL Green Realty Corp

OVA-HQ - SL Green Realty Corp · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#13,475largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#62,735of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS398499 in ASN lookup Look up an IP in this network (198.54.140.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

198.54.140.0/24

IPv6 prefixes

All 1 prefix.

2602:fd2c::/48

Other ASNs named SL Green Realty Corp

5 other networks use the same organisation name; together with AS398499 they announce 1,536 IPv4 addresses.

ASNNameIPv4 addresses

AS27457SLG-2 - SL Green Realty Corp US256

AS46152SLG - SL Green Realty Corp US256

AS399208OVA-BASE-BLDG - SL Green Realty Corp US256

AS399684OVA-SUMMIT - SL Green Realty Corp US256

AS400836SLG-OMA - SL Green Realty Corp US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS397881#13472 STINGERS - Stingers Inc.256

AS398222#13473 CITY-OF-WPB - City of West Palm Beach256

AS398399#13474 ASANA-IT-01 - Asana, Inc.256

AS398838#13476 STRAUB-COLLABORATIVE - Straub Collaborative, Inc.256

AS398894#13477 PRSD - Pine-Richland School District256

AS398922#13478 JDSL-ASN - Jubilee Data Systems, LLC256

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