Autonomous System details

AS3

Massachusetts Institute of Technology · mit.edu

United States

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AS3 – Massachusetts Institute of Technology

Field	Value
Country	United States
Website	mit.edu
Hosted domains	629
IPv4 addresses	1,836,288
IPv6 addresses	633,825,300,114,114,704,000,000,000,000
ASN type	Education
Registry	arin
Allocated	56 years ago on Jan 01, 1970
Updated	4 months ago on Dec 02, 2025

Netblock	Company	Num of IPs
128.30.0.0/15	Massachusetts Institute of Technology	131,072
18.0.0.0/16	Massachusetts Institute of Technology	65,536
18.1.0.0/16	Massachusetts Institute of Technology	65,536
18.3.0.0/16	Massachusetts Institute of Technology	65,536
18.4.0.0/16	Massachusetts Institute of Technology	65,536
18.5.0.0/16	Massachusetts Institute of Technology	65,536
18.6.0.0/16	Massachusetts Institute of Technology	65,536
18.7.0.0/16	Massachusetts Institute of Technology	65,536
18.8.0.0/16	Massachusetts Institute of Technology	65,536
18.9.0.0/16	Massachusetts Institute of Technology	65,536
18.10.0.0/16	Massachusetts Institute of Technology	65,536
18.11.0.0/16	Massachusetts Institute of Technology	65,536
18.12.0.0/16	Massachusetts Institute of Technology	65,536
18.13.0.0/16	Massachusetts Institute of Technology	65,536
18.14.0.0/16	Massachusetts Institute of Technology	65,536
18.15.0.0/16	Massachusetts Institute of Technology	65,536
18.16.0.0/16	Massachusetts Institute of Technology	65,536
18.17.0.0/16	Massachusetts Institute of Technology	65,536
18.18.0.0/16	Massachusetts Institute of Technology	65,536
18.22.0.0/16	Massachusetts Institute of Technology	65,536
18.23.0.0/16	Massachusetts Institute of Technology	65,536
18.25.0.0/16	Massachusetts Institute of Technology	65,536
18.26.0.0/16	Massachusetts Institute of Technology	65,536
18.27.0.0/16	Massachusetts Institute of Technology	65,536
18.29.0.0/16	Massachusetts Institute of Technology	65,536
18.31.0.0/16	Massachusetts Institute of Technology	65,536
128.52.0.0/16	Massachusetts Institute of Technology	65,536
18.3.1.0/24	Massachusetts Institute of Technology	256
18.3.2.0/24	Massachusetts Institute of Technology	256
18.3.3.0/24	Massachusetts Institute of Technology	256
18.3.4.0/24	Massachusetts Institute of Technology	256
18.3.5.0/24	Massachusetts Institute of Technology	256
18.3.6.0/24	Massachusetts Institute of Technology	256
18.3.7.0/24	Massachusetts Institute of Technology	256
18.3.8.0/24	Massachusetts Institute of Technology	256
18.3.9.0/24	Massachusetts Institute of Technology	256
18.3.10.0/24	Massachusetts Institute of Technology	256
18.3.11.0/24	Massachusetts Institute of Technology	256
18.3.12.0/24	Massachusetts Institute of Technology	256
18.3.13.0/24	Massachusetts Institute of Technology	256
18.3.14.0/24	Massachusetts Institute of Technology	256
18.3.15.0/24	Massachusetts Institute of Technology	256
18.3.16.0/24	Massachusetts Institute of Technology	256
18.3.17.0/24	Massachusetts Institute of Technology	256
18.3.18.0/24	Massachusetts Institute of Technology	256
18.3.19.0/24	Massachusetts Institute of Technology	256
18.3.20.0/24	Massachusetts Institute of Technology	256
18.3.21.0/24	Massachusetts Institute of Technology	256
18.3.22.0/24	Massachusetts Institute of Technology	256
18.3.23.0/24	Massachusetts Institute of Technology	256
18.3.28.0/24	Massachusetts Institute of Technology	256
18.3.67.0/24	Massachusetts Institute of Technology	256
18.3.69.0/24	Massachusetts Institute of Technology	256
18.3.90.0/24	Massachusetts Institute of Technology	256
18.3.103.0/24	Massachusetts Institute of Technology	256
18.3.104.0/24	Massachusetts Institute of Technology	256
18.3.105.0/24	Massachusetts Institute of Technology	256
18.3.106.0/24	Massachusetts Institute of Technology	256
18.3.108.0/24	Massachusetts Institute of Technology	256
18.3.109.0/24	Massachusetts Institute of Technology	256
18.3.111.0/24	Massachusetts Institute of Technology	256
18.3.116.0/24	Massachusetts Institute of Technology	256
18.3.122.0/24	Massachusetts Institute of Technology	256
18.3.151.0/24	Massachusetts Institute of Technology	256
18.3.152.0/24	Massachusetts Institute of Technology	256
18.3.153.0/24	Massachusetts Institute of Technology	256
18.3.154.0/24	Massachusetts Institute of Technology	256
18.3.155.0/24	Massachusetts Institute of Technology	256
18.3.156.0/24	Massachusetts Institute of Technology	256
18.7.23.0/24	Massachusetts Institute of Technology	256
18.7.32.0/24	Massachusetts Institute of Technology	256
18.7.34.0/24	Massachusetts Institute of Technology	256
18.7.39.0/24	Massachusetts Institute of Technology	256
18.7.40.0/24	Massachusetts Institute of Technology	256
18.7.54.0/24	Massachusetts Institute of Technology	256
18.7.80.0/24	Massachusetts Institute of Technology	256
18.7.82.0/24	Massachusetts Institute of Technology	256
18.7.84.0/24	Massachusetts Institute of Technology	256
18.7.102.0/24	Massachusetts Institute of Technology	256
18.7.108.0/24	Massachusetts Institute of Technology	256
18.7.117.0/24	Massachusetts Institute of Technology	256
18.7.118.0/24	Massachusetts Institute of Technology	256
18.7.119.0/24	Massachusetts Institute of Technology	256
18.7.120.0/24	Massachusetts Institute of Technology	256
192.52.61.0/24	Massachusetts Institute of Technology	256
192.52.62.0/24	Massachusetts Institute of Technology	256
192.52.63.0/24	Massachusetts Institute of Technology	256
192.52.64.0/24	Massachusetts Institute of Technology	256
192.52.65.0/24	Massachusetts Institute of Technology	256

Netblock	Company
2603:4000::/32	Massachusetts Institute of Technology
2603:4001::/32	Massachusetts Institute of Technology
2603:4007::/32	Massachusetts Institute of Technology
2603:4008::/32	Massachusetts Institute of Technology
2603:4009::/32	Massachusetts Institute of Technology
2603:400a::/32	Massachusetts Institute of Technology
2603:4010::/32	Massachusetts Institute of Technology
2603:4011::/32	Massachusetts Institute of Technology

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WHOIS Details

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                                                ASHandle:       AS3
                                                OrgID:          AS3
                                                ASName:         AS3
                                                ASNumber:       AS3
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 629 domain names hosted across 226 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
18.4.86.46	██████████	75
128.31.0.62	██████████	63
128.52.131.233	██████████	50
18.27.72.48	██████████	17
18.27.76.8	██████████	12
18.27.72.35	██████████	12
18.9.61.24	██████████	12
18.18.38.22	██████████	9
18.27.72.36	██████████	8
18.1.37.31	██████████	8

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Hosted Domains API & Database

Peers

There are 21 peers for this ASN.

Peers	Name
AS10578	Harvard University
AS1239	Cogent Communications, LLC
AS136617	Fortune Telecom Company Limited
AS16713	Northwest Open Access Network
AS174	Cogent Communications, LLC
AS198942	MTURS Network
AS207301	Roman Sartov
AS211509	Rudakov Ihor
AS22608	Public Utility District No. 1 of Okanogan County
AS268142	MAXXTELECOM LTDA
AS29091	ipNX Nigeria Limited
AS293	ESnet
AS3356	Level 3 Parent, LLC
AS35978	GPB Communications Inc
AS37613	DOLPHIN TELECOMMUNICATION LIMITED
AS54755	Desert Winds Wireless Inc
AS55531	BracBank Limited
AS59404	Korkino-Cable Television Networks Ltd
AS63483	Skynet
AS6939	Hurricane Electric LLC
AS7015	Comcast Cable Communications, LLC

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ASN API & Database

Upstreams

There are 7 upstreams for this ASN.

upstreams	Name
AS174	Cogent Communications, LLC
AS3356	Level 3 Parent, LLC
AS35978	GPB Communications Inc
AS59404	Korkino-Cable Television Networks Ltd
AS63483	Skynet
AS6939	Hurricane Electric LLC
AS7015	Comcast Cable Communications, LLC

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
18.17.192.186	AS3 Massachusetts Institute of Technology	`12.27ms` from Boston, US
18.7.132.5	AS3 Massachusetts Institute of Technology	`0.52ms` from Boston, US
18.4.30.65	AS3 Massachusetts Institute of Technology	`0.72ms` from Boston, US
18.1.40.234	AS3 Massachusetts Institute of Technology	`0.48ms` from Boston, US
18.4.19.152	AS3 Massachusetts Institute of Technology	`0.47ms` from Boston, US
18.17.194.123	AS3 Massachusetts Institute of Technology	`13.12ms` from Boston, US
18.27.196.13	AS3 Massachusetts Institute of Technology	`0.37ms` from Boston, US
18.9.94.9	AS3 Massachusetts Institute of Technology	`0.45ms` from Boston, US
18.4.72.12	AS3 Massachusetts Institute of Technology	`0.56ms` from Boston, US
18.17.196.120	AS3 Massachusetts Institute of Technology	`12.95ms` from Boston, US
18.7.53.20	AS3 Massachusetts Institute of Technology	`0.39ms` from Boston, US
18.25.64.92	AS3 Massachusetts Institute of Technology	`0.35ms` from Boston, US
18.8.22.15	AS3 Massachusetts Institute of Technology	`0.74ms` from Boston, US
18.27.240.11	AS3 Massachusetts Institute of Technology	`0.33ms` from Boston, US
18.4.81.27	AS3 Massachusetts Institute of Technology	`1.05ms` from Boston, US
2603:4000:ff::32	AS3 Massachusetts Institute of Technology	`1.92ms` from Boston, US
18.7.134.11	AS3 Massachusetts Institute of Technology	`0.54ms` from Boston, US
128.52.138.169	AS3 Massachusetts Institute of Technology	`0.48ms` from Boston, US
128.30.113.141	AS3 Massachusetts Institute of Technology	`0.38ms` from Boston, US
18.1.69.136	AS3 Massachusetts Institute of Technology	`0.42ms` from Boston, US
18.1.32.6	AS3 Massachusetts Institute of Technology	`0.55ms` from Boston, US
18.4.177.2	AS3 Massachusetts Institute of Technology	`0.53ms` from Boston, US
18.27.120.2	AS3 Massachusetts Institute of Technology	`0.45ms` from Boston, US
18.7.107.18	AS3 Massachusetts Institute of Technology	`0.30ms` from Boston, US
128.30.195.75	AS3 Massachusetts Institute of Technology	`2.27ms` 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
73.123.165.67	AS7922 Comcast Cable Communications, LLC	`10.07ms` from Boston, US
87.33.76.67	AS1213 ASIERA TECHNOLOGY SERVICES CLG	`7.30ms` from Dublin, IE
88.151.152.147	AS21267 Wavenet Limited	`7.32ms` from London, GB
103.37.46.147	AS23650 AS Number for CHINANET jiangsu province backbone	`5.48ms` from Nanjing, CN
84.180.185.19	AS3320 Deutsche Telekom AG	`3.25ms` from Nuernberg, DE
183.101.235.179	AS4766 Korea Telecom	`0.88ms` from Seoul, KR
118.40.222.243	AS4766 Korea Telecom	`6.32ms` from Seoul, KR
176.222.82.3	AS15704 XTRA TELECOM S.A.	`6.90ms` from Sevilla, ES
47.129.221.131	AS16509 Amazon.com, Inc.	`0.58ms` from Singapore, SG
59.129.39.131	AS2516 KDDI CORPORATION	`1.36ms` from Tokyo, JP
34.145.163.211	AS396982 Google LLC	`0.13ms` from Ashburn, US
202.180.23.3	AS38758 PT. HIPERNET INDODATA	`9.52ms` from Batam, ID
152.231.17.3	AS52505 CBRNET	`0.71ms` from Buenos Aires, AR
83.233.239.3	AS29518 Bredband2 AB	`1.62ms` from Copenhagen, DK
113.190.49.211	AS45899 VNPT Corp	`1.20ms` from Hanoi, VN
117.66.1.99	AS140083 China Telecom	`4.25ms` from Huainan, CN
163.229.23.163	AS4766 Korea Telecom	`6.64ms` from Incheon, KR
159.93.225.211	AS2875 Joint Institute for Nuclear Research	`3.12ms` from Moscow, RU
176.50.246.211	AS12389 PJSC Rostelecom	`10.57ms` from Novosibirsk, RU
186.236.239.147	AS28219 Net Rosas Telecomunicações Ltda.	`8.40ms` from Sao Paulo, BR
211.203.92.67	AS9318 SK Broadband Co Ltd	`6.96ms` from Seoul, KR
8.219.116.195	AS45102 Alibaba (US) Technology Co., Ltd.	`0.64ms` from Singapore, SG
223.217.193.115	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.28ms` from Tokyo, JP
47.94.119.3	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.72ms` from Beijing, CN
101.30.137.35	AS4837 CHINA UNICOM China169 Backbone	`9.95ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -f2 -m12 18.17.222.20

traceroute to 18.17.222.20 (18.17.222.20): 12 hops max, 52 byte packets

2 [AS400304] 23.147.153.0 419.295 ms

3 *

4 *

5 [AS174] 154.54.3.9 3.911 ms

6 [AS174] 154.54.40.153 9.814 ms

7 [AS174] 154.54.87.106 9.678 ms

8 [AS174] 38.104.186.186 9.479 ms

9 [AS3] 18.4.4.14 9.69 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Allentown, US

On April 4th 2026

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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 AS3 at robtex.

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