66.33.8.0/21

AS394056 · BIF IV

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Summary

Country	United States
Domain	intrepidfiber.com
ASN	AS394056
Registry	ARIN
ID	BIIOL

WHOIS Details

NetHandle:      NET-66-33-8-0-1
OrgID:          BIIOL
Parent:         NET-66-0-0-0-0
NetName:        BIIOL
NetRange:       66.33.8.0 - 66.33.15.255
NetType:        allocation
RegDate:        2022-11-10
Updated:        2022-11-10
Source:         ARIN


OrgID:          BIIOL
OrgName:        BIF IV
CanAllocate:    
Street:         251 Little Falls Drive
City:           Wilmington
State/Prov:     DE
Country:        US
PostalCode:     19808
RegDate:        2022-09-08
Updated:        2023-12-12
OrgAdminHandle: BIAA-ARIN
OrgTechHandle:  BIAA-ARIN
OrgAbuseHandle: BIAA-ARIN
OrgNOCHandle:   BIAA-ARIN
OrgRoutingHandle:   BIAA-ARIN
OrgDNSHandle:   BIAA-ARIN
Source:         ARIN


POCHandle:      BIAA-ARIN
IsRole:         Y
LastName:       BIF IV ARIN Admin
FirstName:      
Street:         11001 W 120th Ave #305
City:           Broomfield
State/Prov:     CO
Country:        US
PostalCode:     80021
RegDate:        2023-11-17
Updated:        2024-12-06
OfficePhone:    +1-720-680-3200
Mailbox:        admin@intrepidfiber.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 66.33.8.0/21

Range	ASN	Company	Num of IPs
66.33.12.0/24	AS394056	BIF IV	256
66.33.13.0/24	AS394056	BIF IV	256

Hosted domains

There are 31 domain names hosted across 25 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.33.12.127	einarthorsen.com	4
66.33.9.134	wgraham.io	2
66.33.8.235	economicalhosting.net	2
66.33.12.149	ganomehome.com	2
66.33.9.199	d0mgames.org	1
66.33.10.183	edgardorn.com	1
66.33.11.184	wizard-idler.com	1
66.33.11.193	lindvall-mtka.us	1
66.33.11.214	noranomaly.net	1
66.33.11.131	qrx.group	1
66.33.11.190	the-hermit.net	1
66.33.13.0	youdontevenrealize.com	1
66.33.9.221	gregandeva.net	1
66.33.12.179	beslac.net	1
66.33.11.167	apt333.net	1
66.33.8.26	evilteddybear.site	1
66.33.9.169	astrofinch.us	1
66.33.11.225	bytality.com	1
66.33.8.234	haynesworld.net	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
66.33.15.255	AS394056 BIF IV	`0.42ms` from Denver, US
66.33.11.7	AS394056 BIF IV	`0.20ms` from Minneapolis, US
66.33.13.129	AS394056 BIF IV	`0.34ms` from Minneapolis, US
66.33.12.129	AS394056 BIF IV	`0.42ms` from Denver, US
66.33.9.25	AS394056 BIF IV	`0.30ms` from Denver, 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
73.76.13.181	AS7922 Comcast Cable Communications, LLC	`9.83ms` from Dallas, US
4.8.30.181	AS3356 Level 3 Parent, LLC	`8.35ms` from Denver, US
177.86.30.5	AS262492 INTERCONECT TELEINFORMATICA EIRELI	`19.51ms` from Fortaleza, BR
148.71.39.5	AS12353 Vodafone Portugal	`2.47ms` from Lisbon, PT
80.231.58.69	AS6453 TATA COMMUNICATIONS (AMERICA) INC	`0.29ms` from London, GB
35.182.3.133	AS16509 Amazon.com, Inc.	`0.17ms` from Montreal, CA
128.113.85.37	AS91 Rensselaer Polytechnic Institute	`3.93ms` from New York City, US
35.143.182.213	AS33363 Charter Communications, Inc	`11.49ms` from Orlando, US
189.29.221.69	AS28573 Claro NXT Telecomunicacoes Ltda	`6.73ms` from Osasco, BR
52.23.228.85	AS14618 Amazon.com, Inc.	`0.41ms` from Reston, US
50.59.14.5	AS3549 Level 3 Parent, LLC	`0.51ms` from Santa Clara, US
49.128.34.117	AS17547 M1 NET LTD	`0.53ms` from Singapore, SG
188.24.84.37	AS8708 DIGI ROMANIA S.A.	`6.57ms` from Timisoara, RO
77.35.162.149	AS12389 PJSC Rostelecom	`1.11ms` from Vladivostok, RU
76.161.122.69	AS7029 Windstream Communications LLC	`5.56ms` from Ashburn, US
172.171.51.149	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
165.233.80.5	AS7020 Business Connexion Communications	`2.11ms` from Cape Town, ZA
104.177.41.181	AS7018 AT&T Enterprises, LLC	`9.72ms` from Dallas, US
80.130.93.245	AS3320 Deutsche Telekom AG	`6.95ms` from Frankfurt am Main, DE
178.206.141.53	AS28840 PJSC "TATTELECOM"	`4.22ms` from Kazan, RU
95.123.135.5	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.39ms` from Madrid, ES
187.36.9.21	AS28573 Claro NXT Telecomunicacoes Ltda	`1.94ms` from Porto Alegre, BR
124.80.13.21	AS17849 SK Broadband Co Ltd	`1.88ms` from Seoul, KR
2.67.178.101	AS44034 Hi3G Access AB	`7.20ms` from Stockholm, SE
192.114.173.149	AS12400 Partner Communications Ltd.	`0.33ms` from Tel Aviv, IL

Traceroute

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

traceroute -a -n -q1 66.33.9.26

traceroute to 66.33.9.26 (66.33.9.26): 64 hops max, 52 byte packets

1 [AS63023] 69.50.92.1 0.32 ms

2 *

3 *

4 *

5 *

6 [AS394056] 66.33.9.26 0.418 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

On September 5th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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