Report for 3

Name

MIT-GATEWAYS - Massachusetts Institute of Technology, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

3 MIT-GATEWAYS - Massachusetts Institute of Technology, US

  Adjacency:     5  Upstream:     5  Downstream:     0
  Upstream Adjacent AS list
    AS10578         GIGAPOP-NE - Harvard University, US
    AS59404         GLOBALTV-AS, RU
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS35978         KINETIC-1-2009 - GPB Communications Inc, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
283   AS3            ORIGIN  Originate:    1851392 /11.18  Transit:          0 /0.00  MIT-GATEWAYS - Massachusetts Institute of Technology, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
 1535 AS3           MIT-GATEWAYS - Massachusetts Institute of Tec     91     53     15     53     38  41.76%


  Prefix               AS Path                              Aggregation Suggestion
  18.0.0.0/15          4777 2497 174 3      + Announce - aggregate of 18.0.0.0/16 (4777 2497 174 3) and 18.1.0.0/16 (4777 2497 174 3)
  18.0.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.1.0.0/16 (4777 2497 174 3)
  18.1.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.0.0.0/16 (4777 2497 174 3)
  18.3.0.0/16          4777 2497 174 3        
  18.3.1.0/24          4777 2497 3356 3       
  18.3.2.0/23          4777 2497 3356 3     + Announce - aggregate of 18.3.2.0/24 (4777 2497 3356 3) and 18.3.3.0/24 (4777 2497 3356 3)
  18.3.2.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.3.0/24 (4777 2497 3356 3)
  18.3.3.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.2.0/24 (4777 2497 3356 3)
  18.3.4.0/22          4777 2497 3356 3     + Announce - aggregate of 18.3.4.0/23 (4777 2497 3356 3) and 18.3.6.0/23 (4777 2497 3356 3)
  18.3.4.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.5.0/24 (4777 2497 3356 3)
  18.3.5.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.4.0/24 (4777 2497 3356 3)
  18.3.6.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.7.0/24 (4777 2497 3356 3)
  18.3.7.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.6.0/24 (4777 2497 3356 3)
  18.3.8.0/21          4777 2497 3356 3     + Announce - aggregate of 18.3.8.0/22 (4777 2497 3356 3) and 18.3.12.0/22 (4777 2497 3356 3)
  18.3.8.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.9.0/24 (4777 2497 3356 3)
  18.3.9.0/24          4777 2497 3356 3     - Withdrawn - aggregated with 18.3.8.0/24 (4777 2497 3356 3)
  18.3.10.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.11.0/24 (4777 2497 3356 3)
  18.3.11.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.10.0/24 (4777 2497 3356 3)
  18.3.12.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.13.0/24 (4777 2497 3356 3)
  18.3.13.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.12.0/24 (4777 2497 3356 3)
  18.3.14.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.15.0/24 (4777 2497 3356 3)
  18.3.15.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.14.0/24 (4777 2497 3356 3)
  18.3.16.0/22         4777 2497 3356 3     + Announce - aggregate of 18.3.16.0/23 (4777 2497 3356 3) and 18.3.18.0/23 (4777 2497 3356 3)
  18.3.16.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.17.0/24 (4777 2497 3356 3)
  18.3.17.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.16.0/24 (4777 2497 3356 3)
  18.3.18.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.19.0/24 (4777 2497 3356 3)
  18.3.19.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.18.0/24 (4777 2497 3356 3)
  18.3.20.0/23         4777 2497 3356 3     + Announce - aggregate of 18.3.20.0/24 (4777 2497 3356 3) and 18.3.21.0/24 (4777 2497 3356 3)
  18.3.20.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.21.0/24 (4777 2497 3356 3)
  18.3.21.0/24         4777 2497 3356 3     - Withdrawn - aggregated with 18.3.20.0/24 (4777 2497 3356 3)
  18.3.22.0/24         4777 2497 174 3      - Withdrawn - matching aggregate 18.3.0.0/16 4777 2497 174 3
  18.3.23.0/24         4777 2497 174 3      - Withdrawn - matching aggregate 18.3.0.0/16 4777 2497 174 3
  18.3.28.0/24         4777 2497 3356 3       
  18.3.67.0/24         4777 2497 3356 3       
  18.3.69.0/24         4777 2497 3356 3       
  18.3.90.0/24         4777 2497 3356 3       
  18.3.103.0/24        4777 2497 3356 3       
  18.3.104.0/23        4777 2497 3356 3     + Announce - aggregate of 18.3.104.0/24 (4777 2497 3356 3) and 18.3.105.0/24 (4777 2497 3356 3)
  18.3.104.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.105.0/24 (4777 2497 3356 3)
  18.3.105.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.104.0/24 (4777 2497 3356 3)
  18.3.106.0/24        4777 2497 3356 3       
  18.3.108.0/23        4777 2497 3356 3     + Announce - aggregate of 18.3.108.0/24 (4777 2497 3356 3) and 18.3.109.0/24 (4777 2497 3356 3)
  18.3.108.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.109.0/24 (4777 2497 3356 3)
  18.3.109.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.108.0/24 (4777 2497 3356 3)
  18.3.111.0/24        4777 2497 3356 3       
  18.3.116.0/24        4777 2497 3356 3       
  18.3.122.0/24        4777 2497 3356 3       
  18.3.151.0/24        4777 2497 3356 3       
  18.3.152.0/22        4777 2497 3356 3     + Announce - aggregate of 18.3.152.0/23 (4777 2497 3356 3) and 18.3.154.0/23 (4777 2497 3356 3)
  18.3.152.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.153.0/24 (4777 2497 3356 3)
  18.3.153.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.152.0/24 (4777 2497 3356 3)
  18.3.154.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.155.0/24 (4777 2497 3356 3)
  18.3.155.0/24        4777 2497 3356 3     - Withdrawn - aggregated with 18.3.154.0/24 (4777 2497 3356 3)
  18.3.156.0/24        4777 2516 174 3        
  18.4.0.0/14          4777 2497 174 3      + Announce - aggregate of 18.4.0.0/15 (4777 2497 174 3) and 18.6.0.0/15 (4777 2497 174 3)
  18.4.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.5.0.0/16 (4777 2497 174 3)
  18.5.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.4.0.0/16 (4777 2497 174 3)
  18.6.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.7.0.0/16 (4777 2497 174 3)
  18.7.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.6.0.0/16 (4777 2497 174 3)
  18.7.23.0/24         4777 2497 3356 3       
  18.7.32.0/24         4777 2497 3356 3       
  18.7.34.0/24         4777 2497 3356 3       
  18.7.39.0/24         4777 2497 3356 3       
  18.7.40.0/24         4777 2497 174 3      - Withdrawn - matching aggregate 18.7.0.0/16 4777 2497 174 3
  18.7.54.0/24         4777 2497 3356 3       
  18.7.80.0/24         4777 2497 3356 3       
  18.7.82.0/24         4777 2497 3356 3       
  18.7.84.0/24         4777 2497 3356 3       
  18.7.102.0/24        4777 2516 174 3        
  18.7.108.0/24        4777 2516 174 3        
  18.7.117.0/24        4777 2516 174 3        
  18.7.118.0/23        4777 2516 174 3      + Announce - aggregate of 18.7.118.0/24 (4777 2516 174 3) and 18.7.119.0/24 (4777 2516 174 3)
  18.7.118.0/24        4777 2516 174 3      - Withdrawn - aggregated with 18.7.119.0/24 (4777 2516 174 3)
  18.7.119.0/24        4777 2516 174 3      - Withdrawn - aggregated with 18.7.118.0/24 (4777 2516 174 3)
  18.7.120.0/24        4777 2516 174 3        
  18.8.0.0/13          4777 2497 174 3      + Announce - aggregate of 18.8.0.0/14 (4777 2497 174 3) and 18.12.0.0/14 (4777 2497 174 3)
  18.8.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.9.0.0/16 (4777 2497 174 3)
  18.9.0.0/16          4777 2497 174 3      - Withdrawn - aggregated with 18.8.0.0/16 (4777 2497 174 3)
  18.10.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.11.0.0/16 (4777 2497 174 3)
  18.11.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.10.0.0/16 (4777 2497 174 3)
  18.12.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.13.0.0/16 (4777 2497 174 3)
  18.13.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.12.0.0/16 (4777 2497 174 3)
  18.14.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.15.0.0/16 (4777 2497 174 3)
  18.15.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.14.0.0/16 (4777 2497 174 3)
  18.16.0.0/16         4777 2497 174 3        
  18.17.0.0/16         4777 2497 174 3 3      
  18.18.0.0/16         4777 2497 174 3        
  18.22.0.0/16         4777 2497 174 3        
  18.23.0.0/16         4777 2497 174 3 3      
  18.25.0.0/16         4777 2497 174 3        
  18.26.0.0/15         4777 2497 174 3      + Announce - aggregate of 18.26.0.0/16 (4777 2497 174 3) and 18.27.0.0/16 (4777 2497 174 3)
  18.26.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.27.0.0/16 (4777 2497 174 3)
  18.27.0.0/16         4777 2497 174 3      - Withdrawn - aggregated with 18.26.0.0/16 (4777 2497 174 3)
  18.29.0.0/16         4777 2497 174 3        
  18.31.0.0/16         4777 2497 174 3        
  38.126.196.0/24      4777 2516 174 35978 3   
  128.30.0.0/15        4777 2497 174 3        
  128.52.0.0/16        4777 2516 3356 3       
  192.52.61.0/24       4777 2516 3356 3       
  192.52.62.0/23       4777 2516 3356 3     + Announce - aggregate of 192.52.62.0/24 (4777 2516 3356 3) and 192.52.63.0/24 (4777 2516 3356 3)
  192.52.62.0/24       4777 2516 3356 3     - Withdrawn - aggregated with 192.52.63.0/24 (4777 2516 3356 3)
  192.52.63.0/24       4777 2516 3356 3     - Withdrawn - aggregated with 192.52.62.0/24 (4777 2516 3356 3)
  192.52.64.0/23       4777 2516 3356 3     + Announce - aggregate of 192.52.64.0/24 (4777 2516 3356 3) and 192.52.65.0/24 (4777 2516 3356 3)
  192.52.64.0/24       4777 2516 3356 3     - Withdrawn - aggregated with 192.52.65.0/24 (4777 2516 3356 3)
  192.52.65.0/24       4777 2516 3356 3     - Withdrawn - aggregated with 192.52.64.0/24 (4777 2516 3356 3)
  193.242.190.0/24     4777 2497 12389 59404 3   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS3   84 More Specifics   91 Total Advertisements   MIT-GATEWAYS - Massachusetts Institute of Technology, US
    18.0.0.0/16                   18.0.0.0/11
    18.1.0.0/16                   18.0.0.0/11
    18.3.0.0/16                   18.0.0.0/11
    18.3.1.0/24                   18.0.0.0/11
    18.3.2.0/24                   18.0.0.0/11
    18.3.3.0/24                   18.0.0.0/11
    18.3.4.0/24                   18.0.0.0/11
    18.3.5.0/24                   18.0.0.0/11
    18.3.6.0/24                   18.0.0.0/11
    18.3.7.0/24                   18.0.0.0/11
    18.3.8.0/24                   18.0.0.0/11
    18.3.9.0/24                   18.0.0.0/11
    18.3.10.0/24                  18.0.0.0/11
    18.3.11.0/24                  18.0.0.0/11
    18.3.12.0/24                  18.0.0.0/11
    18.3.13.0/24                  18.0.0.0/11
    18.3.14.0/24                  18.0.0.0/11
    18.3.15.0/24                  18.0.0.0/11
    18.3.16.0/24                  18.0.0.0/11
    18.3.17.0/24                  18.0.0.0/11
    18.3.18.0/24                  18.0.0.0/11
    18.3.19.0/24                  18.0.0.0/11
    18.3.20.0/24                  18.0.0.0/11
    18.3.21.0/24                  18.0.0.0/11
    18.3.22.0/24                  18.0.0.0/11
    18.3.23.0/24                  18.0.0.0/11
    18.3.28.0/24                  18.0.0.0/11
    18.3.67.0/24                  18.0.0.0/11
    18.3.69.0/24                  18.0.0.0/11
    18.3.90.0/24                  18.0.0.0/11
    18.3.103.0/24                 18.0.0.0/11
    18.3.104.0/24                 18.0.0.0/11
    18.3.105.0/24                 18.0.0.0/11
    18.3.106.0/24                 18.0.0.0/11
    18.3.108.0/24                 18.0.0.0/11
    18.3.109.0/24                 18.0.0.0/11
    18.3.111.0/24                 18.0.0.0/11
    18.3.116.0/24                 18.0.0.0/11
    18.3.122.0/24                 18.0.0.0/11
    18.3.151.0/24                 18.0.0.0/11
    18.3.152.0/24                 18.0.0.0/11
    18.3.153.0/24                 18.0.0.0/11
    18.3.154.0/24                 18.0.0.0/11
    18.3.155.0/24                 18.0.0.0/11
    18.3.156.0/24                 18.0.0.0/11
    18.4.0.0/16                   18.0.0.0/11
    18.5.0.0/16                   18.0.0.0/11
    18.6.0.0/16                   18.0.0.0/11
    18.7.0.0/16                   18.0.0.0/11
    18.7.23.0/24                  18.0.0.0/11
    18.7.32.0/24                  18.0.0.0/11
    18.7.34.0/24                  18.0.0.0/11
    18.7.39.0/24                  18.0.0.0/11
    18.7.40.0/24                  18.0.0.0/11
    18.7.54.0/24                  18.0.0.0/11
    18.7.80.0/24                  18.0.0.0/11
    18.7.82.0/24                  18.0.0.0/11
    18.7.84.0/24                  18.0.0.0/11
    18.7.102.0/24                 18.0.0.0/11
    18.7.108.0/24                 18.0.0.0/11
    18.7.117.0/24                 18.0.0.0/11
    18.7.118.0/24                 18.0.0.0/11
    18.7.119.0/24                 18.0.0.0/11
    18.7.120.0/24                 18.0.0.0/11
    18.8.0.0/16                   18.0.0.0/11
    18.9.0.0/16                   18.0.0.0/11
    18.10.0.0/16                  18.0.0.0/11
    18.11.0.0/16                  18.0.0.0/11
    18.12.0.0/16                  18.0.0.0/11
    18.13.0.0/16                  18.0.0.0/11
    18.14.0.0/16                  18.0.0.0/11
    18.15.0.0/16                  18.0.0.0/11
    18.16.0.0/16                  18.0.0.0/11
    18.17.0.0/16                  18.0.0.0/11
    18.18.0.0/16                  18.0.0.0/11
    18.22.0.0/16                  18.0.0.0/11
    18.23.0.0/16                  18.0.0.0/11
    18.25.0.0/16                  18.0.0.0/11
    18.26.0.0/16                  18.0.0.0/11
    18.27.0.0/16                  18.0.0.0/11
    18.29.0.0/16                  18.0.0.0/11
    18.31.0.0/16                  18.0.0.0/11
    38.126.196.0/24               38.0.0.0/8
    193.242.190.0/24              193.242.190.0/23

Whois Entry

whois: 402332

IANA has recorded AS3 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       3
             ASName:         MIT-GATEWAYS
             ASHandle:       AS3
             RegDate:        
             Updated:        2025-12-02
             Ref:            https://rdap.arin.net/registry/autnum/3
             
             
             OrgName:        Massachusetts Institute of Technology
             OrgId:          MIT-2
             Address:        Room W92-167
             Address:        77 Massachusetts Avenue
             City:           Cambridge
             StateProv:      MA
             PostalCode:     02139-4307
             Country:        US
             RegDate:        
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/MIT-2
             
             
             OrgNOCHandle: MNO78-ARIN
             OrgNOCName:   MIT Network Operations
             OrgNOCPhone:  +1-617-253-8400 
             OrgNOCEmail:  noc@mit.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN
             
             OrgRoutingHandle: MNO78-ARIN
             OrgRoutingName:   MIT Network Operations
             OrgRoutingPhone:  +1-617-253-8400 
             OrgRoutingEmail:  noc@mit.edu
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN
             
             OrgTechHandle: GOMES41-ARIN
             OrgTechName:   Gomes, Marco 
             OrgTechPhone:  +1-617-253-0336 
             OrgTechEmail:  mgomes@mit.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/GOMES41-ARIN
             
             OrgAbuseHandle: MNS18-ARIN
             OrgAbuseName:   MIT Network Security
             OrgAbusePhone:  +1-617-324-1782 
             OrgAbuseEmail:  arin-mit-security@mit.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MNS18-ARIN
             
             OrgDNSHandle: MNO78-ARIN
             OrgDNSName:   MIT Network Operations
             OrgDNSPhone:  +1-617-253-8400 
             OrgDNSEmail:  noc@mit.edu
             OrgDNSRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN
             
             OrgTechHandle: BROWN2958-ARIN
             OrgTechName:   Brown, Olu 
             OrgTechPhone:  +1-617-258-7870 
             OrgTechEmail:  obrown@mit.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/BROWN2958-ARIN
             
             RNOCHandle: MNO78-ARIN
             RNOCName:   MIT Network Operations
             RNOCPhone:  +1-617-253-8400 
             RNOCEmail:  noc@mit.edu
             RNOCRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN
             
             RAbuseHandle: MNS18-ARIN
             RAbuseName:   MIT Network Security
             RAbusePhone:  +1-617-324-1782 
             RAbuseEmail:  arin-mit-security@mit.edu
             RAbuseRef:    https://rdap.arin.net/registry/entity/MNS18-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #