$ query “AS13536” --type=asn → 1 result(s)

AS13536 · FLASN-13536

FirstLight Networks LLC

AS13536 is run by FirstLight Networks LLC and is a major transit provider, registered in the United States since 1999. The system announces a solid 334 848 IPv4 addresses, including a /15, and supports IPv6. The bulk of its IP address space is in the United States, with additional presence in Australia and Indonesia, and a smaller footprint in another country.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
June 30, 1999
Last Changed
April 24, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
118 / 88
IPv6 Prefixes (raw / aggregated)
11 / 7
IPv4 Addresses
334 848
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (488 592 IPs), 🇦🇺 Australia (1 536 IPs), 🇮🇩 Indonesia (1 024 IPs) and 1 more
Prefix Changed
March 05, 2026

Reputation

Reputation
Good — 1 flagged IPs out of 334 848 total (0.00%)

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
38 networks exchanging traffic without transit
Downstream Customers
169 downstreams buying transit
Unclassified
11 unclassified BGP neighbors
Degree
220 unique BGP neighbors
Reach
242 networks in customer cone

Upstream Providers (2)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (118 total)

  • 143.66.0.0/15 (131 072 addresses (/15 prefix))
  • 150.155.0.0/16 (65 536 addresses (/16 prefix))
  • 216.179.0.0/17 (32 768 addresses (/17 prefix))
  • 216.59.64.0/19 (8 192 addresses (/19 prefix))
  • 72.0.128.0/19 (8 192 addresses (/19 prefix))
  • 66.211.128.0/19 (8 192 addresses (/19 prefix))
  • 66.109.32.0/19 (8 192 addresses (/19 prefix))
  • 209.94.96.0/19 (8 192 addresses (/19 prefix))
  • 216.107.192.0/19 (8 192 addresses (/19 prefix))
  • 64.25.208.0/20 (4 096 addresses (/20 prefix))
  • 216.238.160.0/20 (4 096 addresses (/20 prefix))
  • 216.107.224.0/20 (4 096 addresses (/20 prefix))
  • 66.152.96.0/20 (4 096 addresses (/20 prefix))
  • 173.243.160.0/20 (4 096 addresses (/20 prefix))
  • 67.217.112.0/20 (4 096 addresses (/20 prefix))
  • 68.70.48.0/20 (4 096 addresses (/20 prefix))
  • 69.24.0.0/20 (4 096 addresses (/20 prefix))
  • 206.84.88.0/22 (1 024 addresses (/22 prefix))
  • 204.157.164.0/22 (1 024 addresses (/22 prefix))
  • 38.56.64.0/22 (1 024 addresses (/22 prefix))
  • 192.245.20.0/22 (1 024 addresses (/22 prefix))
  • 216.114.184.0/23 (512 addresses (/23 prefix))
  • 198.102.2.0/23 (512 addresses (/23 prefix))
  • 198.168.32.0/23 (512 addresses (/23 prefix))
  • 198.168.38.0/23 (512 addresses (/23 prefix))
  • 167.244.212.0/23 (512 addresses (/23 prefix))
  • 108.171.34.0/23 (512 addresses (/23 prefix))
  • 108.171.36.0/23 (512 addresses (/23 prefix))
  • 38.147.194.0/23 (512 addresses (/23 prefix))
  • 108.171.46.0/23 (512 addresses (/23 prefix))
  • 167.244.247.0/24 (256 addresses (/24 prefix))
  • 199.254.253.0/24 (256 addresses (/24 prefix))
  • 108.171.42.0/24 (256 addresses (/24 prefix))
  • 108.171.56.0/24 (256 addresses (/24 prefix))
  • 108.171.58.0/24 (256 addresses (/24 prefix))
  • 108.171.62.0/24 (256 addresses (/24 prefix))
  • 136.223.33.0/24 (256 addresses (/24 prefix))
  • 136.223.37.0/24 (256 addresses (/24 prefix))
  • 108.171.41.0/24 (256 addresses (/24 prefix))
  • 108.171.38.0/24 (256 addresses (/24 prefix))
  • 167.150.16.0/24 (256 addresses (/24 prefix))
  • 108.171.33.0/24 (256 addresses (/24 prefix))
  • 167.244.244.0/24 (256 addresses (/24 prefix))
  • 23.142.120.0/24 (256 addresses (/24 prefix))
  • 72.55.246.0/24 (256 addresses (/24 prefix))
  • 192.76.175.0/24 (256 addresses (/24 prefix))
  • 192.103.144.0/24 (256 addresses (/24 prefix))
  • 192.149.109.0/24 (256 addresses (/24 prefix))
  • 192.245.19.0/24 (256 addresses (/24 prefix))
  • 72.15.1.0/24 (256 addresses (/24 prefix))
  • and 38 more

IPv6 Prefixes (11 total)

  • 2606:9800::/32
  • 2607:fc58::/32
  • 2607:fd48::/32
  • 2605:da80:1601::/48
  • 2605:da80:2301::/48
  • 2605:da80:3101::/48
  • 2620:65:a000::/48