AS15320 FirstLight Fiber, Inc.

PRIMELINK - FirstLight Fiber, Inc. · registered in the United States

IPv4 addresses12,03213 prefixes · <0.001% of announced IPv4

Rank in United States#2,750largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#8,329of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS15320 in ASN lookup Look up an IP in this network (136.223.177.1) All networks in United States

IPv4 prefixes

All 13 prefixes, in address order.

136.223.177.0/24
173.242.96.0/21
173.242.104.0/22
173.242.108.0/23
173.242.110.0/24
216.27.112.0/21
216.27.121.0/24
216.27.122.0/23
216.27.124.0/22
216.130.224.0/21
216.130.232.0/22
216.130.236.0/23
216.238.168.0/23

Other ASNs named FirstLight Fiber, Inc.

7 other networks use the same organisation name; together with AS15320 they announce 501,984 IPv4 addresses.

ASNNameIPv4 addresses

AS13536TVC-AS1 - FirstLight Fiber, Inc. US312,064

AS21547OXNET - FirstLight Fiber, Inc. US64,000

AS5738SOVER-ASN - FirstLight Fiber, Inc. US59,616

AS27382COLOSPACE - FirstLight Fiber, Inc. US32,256

AS14477FLTG - FirstLight Fiber, Inc. US13,824

AS14877FL-14877 - FirstLight Fiber, Inc. US6,656

AS62929186-ASN - FirstLight Fiber, Inc. US1,536

Similar-sized networks in United States

ASNNameIPv4 addresses

AS12154#2747 INFOUSA - DATA AXLE, INC12,032

AS13990#2748 COUNTYOFORANGE - County of Orange12,032

AS14971#2749 PINETEL - Pine Telephone System, Inc.12,032

AS19005#2751 MOZGROUP-SMTP - J2 Global Ventures, LLC12,032

AS25612#2752 DSL-EXPRESS - DSL EXPRESS12,032

AS25717#2753 SCAAM0001 - Essity Hygiene and Health12,032

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