AS27457 SL Green Realty Corp

SLG-2 - SL Green Realty Corp · registered in the United States

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in United States#14,889largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#64,859of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS27457 in ASN lookup Look up an IP in this network (38.98.99.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

38.98.99.0/24

Other ASNs named SL Green Realty Corp

5 other networks use the same organisation name; together with AS27457 they announce 1,536 IPv4 addresses.

ASNNameIPv4 addresses

AS398499OVA-HQ - 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

AS27412#14886 NCHE - American Council on Education256

AS27414#14887 CARISDX - Caris Diagnostics, Inc.256

AS27455#14888 WT-ASN - Williams Trading LLC256

AS27474#14890 IVN-LV - I-View Now, LLC256

AS27478#14891 AKR-WPNY - Acadia Realty Trust256

AS27485#14892 XCNODE - XcNode256

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