AS16657 Crown Castle Fiber LLC

CROWNCASTLE-AS16657 - Crown Castle Fiber LLC · registered in the United States

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in United States#9,392largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,855of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS16657 in ASN lookup Look up an IP in this network (151.181.32.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

151.181.32.0/24
151.181.36.0/24
208.69.87.0/24

Other ASNs named Crown Castle Fiber LLC

11 other networks use the same organisation name; together with AS16657 they announce 960,512 IPv4 addresses.

ASNNameIPv4 addresses

AS46887CROWNCASTLE-AS46887 - Crown Castle Fiber LLC US813,312

AS33132CROWNCASTLE-AS33132 - Crown Castle Fiber LLC US130,048

AS33313AS33313 - Crown Castle Fiber LLC US6,912

AS27506CROWNCASTLE-AS27506 - Crown Castle Fiber LLC US5,120

AS23329AS23329 - Crown Castle Fiber LLC US1,536

AS30372AS30372 - Crown Castle Fiber LLC US1,536

AS394647AS394647 - Crown Castle Fiber LLC US512

AS11074CROWNCASTLE-AS11074 - Crown Castle Fiber LLC US256

AS13592CROWNCASTLE-AS13592 - Crown Castle Fiber LLC US256

AS63441AS63441 - Crown Castle Fiber LLC US256

AS21687AS21687 - Crown Castle Fiber LLC USIPv6 only

Similar-sized networks in United States

ASNNameIPv4 addresses

AS16429#9389 TGNA-WCSH - TEGNA Inc.768

AS16565#9390 FIRST-HAWAIIAN-BANK - First Hawaiian Bank768

AS16639#9391 IRONBOW-ASN - Iron Bow Technologies, LLC768

AS16659#9393 CROWN-AS-1 - Crown Castle USA768

AS16714#9394 TENNANT-COMPANY - Tennant768

AS16737#9395 STABLEHOST - Nerdie Networks LLC768

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