Autonomous System details

AS21547

FirstLight Networks, LLC  ·  firstlight.net

United States

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS21547 – FirstLight Networks, LLC

Field Value
Country United States
Website firstlight.net
Hosted domains 987
IPv4 addresses 72,960
IPv6 addresses 158,459,951,805,987,519,887,600,000,000
ASN type ISP
Registry arin
Allocated 25 years ago on May 21, 2001
Updated 4 days ago on Apr 22, 2026

IP Ranges

Netblock Company Num of IPs
64.140.192.0/18 FirstLight Networks, LLC 16,384
64.140.224.0/19 FirstLight Networks, LLC 8,192
66.186.160.0/19 FirstLight Networks, LLC 8,192
66.231.192.0/19 FirstLight Networks, LLC 8,192
69.49.128.0/19 FirstLight Networks, LLC 8,192
72.12.64.0/19 FirstLight Networks, LLC 8,192
72.55.224.0/19 FirstLight Networks, LLC 8,192
69.168.0.0/20 FirstLight Networks, LLC 4,096
74.220.224.0/20 FirstLight Networks, LLC 4,096
63.127.192.0/21 WorldPath Internet Services 2,048
208.0.176.0/21 WorldPath Internet Services 2,048
208.3.240.0/21 WorldPath Internet Services 2,048
66.231.220.0/22 FirstLight Networks, LLC 1,024
69.49.140.0/23 FirstLight Networks, LLC 512
72.12.76.0/23 FirstLight Networks, LLC 512
72.12.94.0/23 FirstLight Networks, LLC 512
72.55.248.0/23 FirstLight Networks, LLC 512
72.55.254.0/23 FirstLight Networks, LLC 512
198.212.226.0/23 Concord Hospital 512
64.140.199.0/24 FirstLight Networks, LLC 256
64.140.224.0/24 FirstLight Networks, LLC 256
64.140.225.0/24 FirstLight Networks, LLC 256
64.140.234.0/24 FirstLight Networks, LLC 256
64.140.246.0/24 FirstLight Networks, LLC 256
66.186.162.0/24 FirstLight Networks, LLC 256
66.186.163.0/24 FirstLight Networks, LLC 256
66.186.171.0/24 FirstLight Networks, LLC 256
66.186.173.0/24 FirstLight Networks, LLC 256
66.186.176.0/24 FirstLight Networks, LLC 256
66.186.184.0/24 FirstLight Networks, LLC 256
66.186.188.0/24 FirstLight Networks, LLC 256
66.231.192.0/24 RedZone Wireless 256
66.231.207.0/24 Oxford Networks 256
66.231.208.0/24 FirstLight Networks, LLC 256
66.231.214.0/24 FirstLight Networks, LLC 256
66.231.215.0/24 FirstLight Networks, LLC 256
66.231.217.0/24 FirstLight Networks, LLC 256
66.231.219.0/24 FirstLight Networks, LLC 256
69.49.128.0/24 FirstLight Networks, LLC 256
69.49.129.0/24 FirstLight Networks, LLC 256
69.49.133.0/24 Auto Europe 256
69.49.144.0/24 FirstLight Networks, LLC 256
69.49.146.0/24 Unitel Inc 256
69.49.148.0/24 FirstLight Networks, LLC 256
69.49.153.0/24 FirstLight Networks, LLC 256
72.12.75.0/24 MEMIC 256
72.12.78.0/24 FirstLight Networks, LLC 256
72.12.79.0/24 FirstLight Networks, LLC 256
72.12.80.0/24 FirstLight Networks, LLC 256
72.12.84.0/24 FirstLight Networks, LLC 256
72.12.87.0/24 FirstLight Networks, LLC 256
72.12.91.0/24 FirstLight Networks, LLC 256
72.12.92.0/24 FirstLight Networks, LLC 256
72.55.247.0/24 FirstLight Networks, LLC 256
74.220.236.0/24 FirstLight Networks, LLC 256
140.165.50.0/24 Teledyne Brown Engineering 256
198.212.225.0/24 Concord Hospital 256
198.212.230.0/24 Concord Hospital 256

Netblock Company
2001:4940::/32 FirstLight Networks, LLC
2604:3f00::/32 FirstLight Networks, LLC
2001:4940:2001::/48 FirstLight Networks, LLC
2001:4940:2006::/48 FirstLight Networks, LLC
2001:4940:2007::/48 FirstLight Networks, LLC
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS21547
                                                OrgID:          AS21547
                                                ASName:         AS21547
                                                ASNumber:       AS21547
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are 987 domain names hosted across 263 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
64.140.253.44 ██████████ 40
63.127.194.195 ██████████ 35
66.186.172.183 ██████████ 35
64.140.253.45 ██████████ 34
69.49.151.180 ███████ 26
66.186.172.185 ██████████ 26
66.186.172.182 ██████████ 20
63.127.195.68 ██████████ 19
72.12.70.172 ██████████ 14
66.186.172.181 ██████████ 14

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There are 5 peers for this ASN.

Peers Name
AS13536 FirstLight Networks, LLC
AS36501 GARMIN INTERNATIONAL INC.
AS36787 Hearst-Argyle Television, Inc.
AS36823 Martin's Point HealthCare
AS395342 Exeter Hospital
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS13536 FirstLight Networks, LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are 4 downstreams for this ASN.

Downstreams Name
AS36501 GARMIN INTERNATIONAL INC.
AS36787 Hearst-Argyle Television, Inc.
AS36823 Martin's Point HealthCare
AS395342 Exeter Hospital
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

211 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
66.186.166.73 AS21547 FirstLight Networks, LLC 8.09ms from Boston, US
64.140.216.34 AS21547 FirstLight Networks, LLC 2.68ms from Boston, US
66.231.198.161 AS21547 FirstLight Networks, LLC 4.03ms from Boston, US
69.168.10.2 AS21547 FirstLight Networks, LLC 4.98ms from Boston, US
66.231.204.1 AS21547 FirstLight Networks, LLC 4.05ms from Boston, US
74.220.230.53 AS21547 FirstLight Networks, LLC 1.90ms from Boston, US
72.12.66.161 AS21547 FirstLight Networks, LLC 1.92ms from Boston, US
72.55.240.1 AS21547 FirstLight Networks, LLC 6.42ms from Boston, US
64.140.226.177 AS21547 FirstLight Networks, LLC 3.01ms from Boston, US
66.186.173.1 AS21547 FirstLight Networks, LLC 6.40ms from Boston, US
66.231.203.1 AS21547 FirstLight Networks, LLC 6.55ms from Boston, US
64.140.196.49 AS21547 FirstLight Networks, LLC 1.88ms from Boston, US
72.12.85.129 AS21547 FirstLight Networks, LLC 2.94ms from Boston, US
64.140.206.9 AS21547 FirstLight Networks, LLC 1.85ms from Boston, US
74.220.235.1 AS21547 FirstLight Networks, LLC 5.02ms from Boston, US
66.231.197.177 AS21547 FirstLight Networks, LLC 2.97ms from Boston, US
66.231.219.102 AS21547 FirstLight Networks, LLC 12.45ms from Boston, US
72.12.84.198 AS21547 FirstLight Networks, LLC 5.23ms from Boston, US
64.140.223.225 AS21547 FirstLight Networks, LLC 1.90ms from Boston, US
74.220.232.17 AS21547 FirstLight Networks, LLC 2.96ms from Boston, US
66.186.181.225 AS21547 FirstLight Networks, LLC 2.92ms from Boston, US
64.140.215.2 AS21547 FirstLight Networks, LLC 5.03ms from Boston, US
74.220.238.73 AS21547 FirstLight Networks, LLC 1.88ms from Boston, US
66.186.160.61 AS21547 FirstLight Networks, LLC 1.91ms from Boston, US
66.186.190.73 AS21547 FirstLight Networks, LLC 2.96ms from Boston, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
54.189.21.203 AS16509 Amazon.com, Inc. 0.30ms from Boardman, US
44.254.148.11 AS16509 Amazon.com, Inc. 0.24ms from Boardman, US
197.58.34.203 AS8452 TE-AS 18.87ms from Cairo, EG
34.67.59.187 AS396982 Google LLC 0.12ms from Council Bluffs, US
18.195.8.91 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
186.101.196.59 AS27947 Telconet S.A 2.01ms from Guayaquil, EC
104.237.74.107 AS22552 eSited Solutions 0.12ms from Los Angeles, US
70.191.35.91 AS22773 Cox Communications Inc. 5.60ms from Los Angeles, US
67.160.165.75 AS7922 Comcast Cable Communications, LLC 2.33ms from Portland, US
20.65.146.11 AS8075 Microsoft Corporation 0.25ms from San Antonio, US
135.180.159.203 AS46375 Sonic Telecom LLC 1.61ms from San Jose, US
87.119.175.171 AS2586 Elisa Eesti AS 6.15ms from Tallinn, EE
131.229.72.75 AS1255 Smith College 4.37ms from Boston, US
94.27.210.11 AS5483 Magyar Telekom Plc. 1.75ms from Budapest, HU
193.203.215.11 AS17497 Liasail Global Hongkong Limited 0.53ms from Ho Chi Minh City, VN
207.211.233.91 AS395040 Green Hills Telephone Corporation 3.85ms from Kansas City, US
58.98.197.59 AS9595 NTT-ME Corporation 4.83ms from Osaka, JP
14.80.186.27 AS4766 Korea Telecom 7.46ms from Seoul, KR
95.111.123.43 AS20911 Net-Surf.net Ltd. 2.95ms from Sofia, BG
223.64.226.219 AS56046 China Mobile communications corporation 3.14ms from Suzhou, CN
126.80.232.59 AS17676 SoftBank Corp. 7.75ms from Tokyo, JP
184.150.169.139 AS577 Bell Canada 0.46ms from Winnipeg, CA
20.61.37.59 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
185.125.174.43 AS203412 KUES DATA GmbH 4.12ms from Frankfurt am Main, DE
47.244.201.155 AS45102 Alibaba (US) Technology Co., Ltd. 1.11ms from Hong Kong, HK

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 69.49.145.73
traceroute to 69.49.145.73 (69.49.145.73): 64 hops max, 52 byte packets
1 [AS50613] 37.235.49.2 188.456 ms
2 [AS21547] 69.49.145.73 107.82 ms
Measurement taken from IPinfo ProbeNet in Hafnarfjoerdur, IS
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS21547 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs