128.244.0.0/16

AS77 · Johns Hopkins University Applied Physics Laboratory

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Summary

Country	United States
Domain	jhuapl.edu
ASN	AS77
Registry	ARIN
ID	JHUAPL-NET

WHOIS Details

NetHandle:      NET-128-244-0-0-1
OrgID:          JHUAPL
Parent:         NET-128-0-0-0-0
NetName:        JHUAPL-NET
NetRange:       128.244.0.0 - 128.244.255.255
NetType:        allocation
RegDate:        1987-06-03
Updated:        2021-12-14
TechHandle:     ZJ20-ARIN
AbuseHandle:    ZJ20-ARIN
NOCHandle:      ZJ20-ARIN
Source:         ARIN


OrgID:          JHUAPL
OrgName:        Johns Hopkins University Applied Physics Laboratory
CanAllocate:    
Street:         11100 Johns Hopkins Road
City:           Laurel
State/Prov:     MD
Country:        US
PostalCode:     20723
RegDate:        2003-07-15
Updated:        2011-09-24
OrgAdminHandle: ZJ20-ARIN
OrgTechHandle:  ZJ20-ARIN
OrgAbuseHandle: ZJ20-ARIN
Source:         ARIN


POCHandle:      ZJ20-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         11100 Johns Hopkins Road
City:           Laurel
State/Prov:     MD
Country:        US
PostalCode:     20723
RegDate:        2001-06-28
Updated:        2025-11-07
OfficePhone:    +1-240-228-6016
Mailbox:        nic-contact@jhuapl.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 128.0.0.0/8

Range	ASN	Company	Num of IPs
128.78.0.0/15	AS5410	Bouygues Telecom SA	131,072
128.178.0.0/15	AS559	Ecublens Camp Net	131,072
128.130.0.0/15	AS679	Technische Universitaet Wien	131,072
128.236.0.0/16	AS391	Air Force Systems Networking	65,536
128.228.0.0/16	AS31822	City University of New York	65,536
128.52.0.0/16	AS3	Massachusetts Institute of Technology	65,536
128.174.0.0/16	AS38	University of Illinois	65,536
128.12.0.0/16	AS32	Stanford University	65,536
128.194.0.0/16	AS3794	Texas A&M University	65,536
128.183.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.242.0.0/16	AS2914	NTT America, Inc.	65,536
128.249.0.0/16	AS302	Baylor College of Medicine	65,536
128.200.0.0/16	AS299	University of California, Irvine	65,536
128.195.0.0/16	AS299	University of California, Irvine	65,536
128.47.0.0/16	AS252	Headquarters, USAISC	65,536
128.34.0.0/16	AS22	Navy Network Information Center (NNIC)	65,536
128.19.0.0/16	AS27064	DoD Network Information Center	65,536
128.102.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.217.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.175.0.0/16	AS34	University of Delaware	65,536
128.157.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.159.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.36.0.0/16	AS29	Yale University	65,536
128.121.0.0/16	AS2914	NTT America, Inc.	65,536
128.241.0.0/16	AS2914	NTT America, Inc.	65,536
128.233.0.0/16	AS22950	University of Saskatchewan	65,536
128.163.0.0/16	AS23162	University of Kentucky	65,536
128.55.0.0/16	AS2936	ESnet	65,536
128.156.0.0/16	AS297	National Aeronautics and Space Administration	65,536
128.100.0.0/16	AS239	University of Toronto	65,536
128.170.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
128.252.0.0/16	AS2552	Washington University	65,536
128.49.0.0/16	AS22	Navy Network Information Center (NNIC)	65,536
128.98.0.0/16	AS24775	QinetiQ TIM	65,536
128.93.0.0/16	AS2200	Institut National de Recherche en Informatique et Automatique	65,536
128.32.0.0/16	AS25	University of California at Berkeley	65,536
128.234.0.0/16	AS25019	Saudi Telecom Company JSC	65,536
128.39.0.0/16	AS224	UNINETT backbone network	65,536
128.143.0.0/16	AS225	University of Virginia	65,536
128.253.0.0/16	AS26	Cornell University	65,536
128.186.0.0/16	AS2553	Florida State University	65,536
128.28.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
128.84.0.0/16	AS26	Cornell University	65,536
128.155.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.158.0.0/16	AS270	National Aeronautics and Space Administration	65,536
128.18.0.0/16	AS264	SRI International	65,536
128.37.0.0/16	AS27064	Headquarters, USAISC	65,536
128.189.0.0/16	AS271	BCNET	65,536
128.53.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
128.8.0.0/16	AS27	University of Maryland	65,536

Hosted domains

There are 32 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
128.244.178.237	johnshopkinsuniversityappliedphysicslab.org	32

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

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

IP Address	ASN	Details
128.244.13.5	AS77 Johns Hopkins University Applied Physics Laboratory	`1.30ms` from Ashburn, US
128.244.94.253	AS77 Johns Hopkins University Applied Physics Laboratory	`1.36ms` from Ashburn, US
128.244.93.162	AS77 Johns Hopkins University Applied Physics Laboratory	`2.96ms` from Ashburn, US
128.244.74.15	AS77 Johns Hopkins University Applied Physics Laboratory	`1.31ms` from Ashburn, US
128.244.4.41	AS77 Johns Hopkins University Applied Physics Laboratory	`1.30ms` from Ashburn, US
128.244.75.15	AS77 Johns Hopkins University Applied Physics Laboratory	`1.36ms` from Ashburn, US
128.244.38.15	AS77 Johns Hopkins University Applied Physics Laboratory	`1.30ms` from Ashburn, US
128.244.42.5	AS77 Johns Hopkins University Applied Physics Laboratory	`1.31ms` from Ashburn, US
128.244.11.15	AS77 Johns Hopkins University Applied Physics Laboratory	`1.31ms` from Ashburn, 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
13.217.231.192	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
208.194.193.128	AS701 Verizon Business	`0.45ms` from Ashburn, US
13.90.204.176	AS8075 Microsoft Corporation	`0.40ms` from Ashburn, US
58.21.154.240	AS4837 CHINA UNICOM China169 Backbone	`4.59ms` from Changchun, CN
103.110.165.0	AS135817 ESTO MEDIA PRIVATE LIMITED	`0.68ms` from Delhi, IN
216.232.161.224	AS852 TELUS Communications Inc.	`12.25ms` from Edmonton, CA
45.188.35.0	AS269520 NAFIBRA AMAMBAI INTERNET LTDA	`14.94ms` from Fortaleza, BR
84.149.208.192	AS3320 Deutsche Telekom AG	`8.96ms` from Frankfurt am Main, DE
183.131.34.0	AS136188 NINGBO, ZHEJIANG Province, P.R.China.	`8.43ms` from Hangzhou, CN
218.57.61.192	AS4837 CHINA UNICOM China169 Backbone	`6.54ms` from Jinan, CN
116.90.231.16	AS24550 Websurfer Nepal Internet Service Provider	`1.54ms` from Kathmandu, NP
38.19.215.16	AS274145 AMERICANET WORLDWIDE S.A.C.	`0.85ms` from Lima, PE
47.232.159.240	AS20115 Charter Communications LLC	`7.58ms` from Los Angeles, US
79.14.105.0	AS3269 Telecom Italia S.p.A.	`2.06ms` from Milan, IT
146.112.42.128	AS36692 Cisco OpenDNS, LLC	`0.16ms` from Milan, IT
69.120.204.0	AS6128 Cablevision Systems Corp.	`3.14ms` from New York City, US
5.128.155.80	AS31200 Novotelecom Ltd	`1.52ms` from Novosibirsk, RU
108.205.40.0	AS7018 AT&T Enterprises, LLC	`2.65ms` from San Antonio, US
182.223.64.224	AS17858 LG POWERCOMM	`2.25ms` from Seoul, KR
121.139.241.112	AS4766 Korea Telecom	`1.73ms` from Seoul, KR
87.97.233.16	AS13124 A1 Bulgaria EAD	`5.87ms` from Sofia, BG
20.172.187.64	AS8075 Microsoft Corporation	`0.45ms` from Ashburn, US
101.98.90.64	AS9790 Two Degrees Networks Limited	`1.26ms` from Auckland, NZ
103.164.91.0	AS153610 Tenbyte Limited	`0.35ms` from Dhaka, BD
178.90.45.240	AS9198 JSC Kazakhtelecom	`4.68ms` from Karagandy, KZ

Traceroute

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

traceroute -a -n -q1 128.244.4.41

traceroute to 128.244.4.41 (128.244.4.41): 64 hops max, 52 byte packets

1 [AS397423] 82.22.204.145 2.581 ms

2 *

3 [AS77] 128.244.4.41 1.349 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On December 14th 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.

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