Report for 81

Name

NCREN - MCNC, 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.

81 NCREN - MCNC, US

  Adjacency:    42  Upstream:     6  Downstream:    36
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS11164         INTERNET2-I2PX - Internet2, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS11537         INTERNET2-RESEARCH-EDU - Internet2, US
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
  Downstream Adjacent AS list
    AS18538         WCPSS-BOE - Wake County Public School System, US
    AS32417         ELONU-AS - Elon University, US
    AS22862         CLINTON-CITY-SCHOOLS - Clinton City Schools, US
    AS394165        COGNC - City of Greenville, NC, US
    AS394407        CCCC-NC - Central Carolina Community College, US
    AS36850         UNC-CH - University of North Carolina at Chapel Hill, US
    AS396028        VIDANTHEALTH - Vidant Health, US
    AS396978        ORANGE-WATER-SEWER-AUTHORITY - Orange Water and Sewer Authority, US
    AS399407        SALEM-AC-01 - Salem Academy and College, US
    AS398580        QUEENS-UNIV-CLT-01 - Queens University of Charlotte, US
    AS46963         CITY-WINSTON-SALEM-AS - City of Winston-Salem, US
    AS46255         CHARLOTTE-MECKLENBURG-SCHOOLS-NC - Charlotte-Mecklenburg Schools, US
    AS40245         WAKE-FOREST-UNIVERSITY - Wake Forest University, US
    AS53384         UNCC-AS - University of North Carolina at Charlotte, US
    AS53785         UNC-GREENSBORO - University of North Carolina at Greensboro, US
    AS399708        NCWC-ARIN-ASN - North Carolina Wesleyan College, US
    AS395465        APOG-UNCC-SOUTH - Apogee Telecom Inc., US
    AS47098         SAMPSON COUNTY SCHOOLS - Sampson County Schools, US
    AS11442         NCSU - North Carolina State University, US
    AS6559          NCIH - State of NC - State Telecommunications Services, US
    AS20197         NCRC-KANNAPOLIS - Castle & Cooke North Carolina, LLC, US
    AS13862         NCSU-SNARE - North Carolina State University, US
    AS399565        SHAWU-AS01 - Shaw University, US
    AS393875        UMO-AS - University of Mount Olive, Inc., US
    AS400959        CARYNC - Town of Cary, US
    AS393824        APOG-LENOIR-RHYNE - Apogee Telecom Inc., US
    AS19161         APOG-UNCC-NORTH - Apogee Telecom Inc., US
    AS10952         ECU-AS - East Carolina University, US
    AS13371         DUKE-INTERCHANGE - Duke University, US
    AS19718         NCNI - MCNC, US
    AS32711         WCGNC - Wake County Government, US
    AS399050        ROW-CAB-01 - Rowan-Cabarrus Community College, US
    AS396391        GUILFORD-COLLEGE - Guilford College, US
    AS46794         PENDER COUNTY SCHOOLS - Pender County Schools, US
    AS26741         CEMC - CarolinaEast Medical Center, US
    AS19413         ROANOKE-CONNECT-ASN-1 - Roanoke Connect, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
252   AS81           ORG+TRN Originate:    2154496 /10.96  Transit:    1448448 /11.53 NCREN - MCNC, 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       %
  857 AS81          NCREN - MCNC, US                                 142     82     11     71     71  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  128.109.0.0/16       4777 2497 174 81       
  152.4.0.0/16         4777 2497 174 81       
  152.6.0.0/16         4777 2497 174 81       
  152.8.0.0/15         4777 2497 174 81     + Announce - aggregate of 152.8.0.0/16 (4777 2497 174 81) and 152.9.0.0/16 (4777 2497 174 81)
  152.8.0.0/16         4777 2497 174 81     - Withdrawn - aggregated with 152.9.0.0/16 (4777 2497 174 81)
  152.9.0.0/16         4777 2497 174 81     - Withdrawn - aggregated with 152.8.0.0/16 (4777 2497 174 81)
  152.10.0.0/16        4608 7575 11537 81     
  152.11.0.0/16        4777 2497 174 81       
  152.12.0.0/16        4777 2497 174 81       
  152.18.0.0/16        4777 2497 174 81       
  152.20.0.0/15        4777 2497 174 81     + Announce - aggregate of 152.20.0.0/16 (4777 2497 174 81) and 152.21.0.0/16 (4777 2497 174 81)
  152.20.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.21.0.0/16 (4777 2497 174 81)
  152.21.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.20.0.0/16 (4777 2497 174 81)
  152.22.0.0/16        4777 2497 174 81       
  152.22.32.0/20       4777 2516 174 81     + Announce - aggregate of 152.22.32.0/21 (4777 2516 174 81) and 152.22.40.0/21 (4777 2516 174 81)
  152.22.32.0/21       4777 2516 174 81     - Withdrawn - aggregated with 152.22.40.0/21 (4777 2516 174 81)
  152.22.40.0/21       4777 2516 174 81     - Withdrawn - aggregated with 152.22.32.0/21 (4777 2516 174 81)
  152.22.48.0/21       4777 2516 174 81       
  152.22.64.0/21       4777 2497 174 81     - Withdrawn - matching aggregate 152.22.0.0/16 4777 2497 174 81
  152.22.72.0/21       4777 2497 174 81     - Withdrawn - matching aggregate 152.22.0.0/16 4777 2497 174 81
  152.22.80.0/21       4777 2497 174 81     - Withdrawn - matching aggregate 152.22.0.0/16 4777 2497 174 81
  152.26.0.0/15        4777 2497 174 81     + Announce - aggregate of 152.26.0.0/16 (4777 2497 174 81) and 152.27.0.0/16 (4777 2497 174 81)
  152.26.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.27.0.0/16 (4777 2497 174 81)
  152.26.16.0/24       4608 7575 11537 81     
  152.26.44.0/24       4777 2497 3356 81      
  152.26.60.0/24       4608 7575 11537 81     
  152.26.69.0/24       4608 7575 11537 81     
  152.26.208.0/23      4777 2516 174 81     + Announce - aggregate of 152.26.208.0/24 (4777 2516 174 81) and 152.26.209.0/24 (4777 2516 174 81)
  152.26.208.0/24      4777 2516 174 81     - Withdrawn - aggregated with 152.26.209.0/24 (4777 2516 174 81)
  152.26.209.0/24      4777 2516 174 81     - Withdrawn - aggregated with 152.26.208.0/24 (4777 2516 174 81)
  152.26.210.0/24      4777 2497 174 81     - Withdrawn - matching aggregate 152.26.0.0/16 4777 2497 174 81
  152.26.211.0/24      4608 7575 11537 81     
  152.26.212.0/24      4777 2497 174 81     - Withdrawn - matching aggregate 152.26.0.0/16 4777 2497 174 81
  152.26.213.0/24      4777 2497 174 81     - Withdrawn - matching aggregate 152.26.0.0/16 4777 2497 174 81
  152.27.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.26.0.0/16 (4777 2497 174 81)
  152.27.12.0/24       4777 2497 3356 81      
  152.28.0.0/15        4777 2497 174 81     + Announce - aggregate of 152.28.0.0/16 (4777 2497 174 81) and 152.29.0.0/16 (4777 2497 174 81)
  152.28.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.29.0.0/16 (4777 2497 174 81)
  152.28.1.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.28.0.0/16 4777 2497 174 81
  152.29.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.28.0.0/16 (4777 2497 174 81)
  152.30.0.0/16        4777 2497 174 81       
  152.30.10.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.30.0.0/16 4777 2497 174 81
  152.30.92.0/22       4777 2497 174 81     - Withdrawn - matching aggregate 152.30.0.0/16 4777 2497 174 81
  152.30.92.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.30.0.0/16 4777 2497 174 81
  152.32.0.0/18        4777 2497 174 81       
  152.35.0.0/16        4777 2497 174 81       
  152.38.0.0/18        4777 2497 174 81       
  152.38.17.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.38.0.0/18 4777 2497 174 81
  152.38.18.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.38.0.0/18 4777 2497 174 81
  152.38.64.0/19       4777 2497 174 81       
  152.38.160.0/19      4777 2497 174 81       
  152.38.192.0/18      4777 2497 174 81     + Announce - aggregate of 152.38.192.0/19 (4777 2497 174 81) and 152.38.224.0/19 (4777 2497 174 81)
  152.38.192.0/20      4777 2497 174 81     - Withdrawn - aggregated with 152.38.208.0/20 (4777 2497 174 81)
  152.38.208.0/20      4777 2497 174 81     - Withdrawn - aggregated with 152.38.192.0/20 (4777 2497 174 81)
  152.38.224.0/19      4777 2497 174 81     - Withdrawn - aggregated with 152.38.192.0/19 (4777 2497 174 81)
  152.40.0.0/16        4777 2497 174 81       
  152.42.64.0/18       4777 2497 174 81       
  152.45.0.0/16        4777 2497 174 81       
  152.45.1.0/24        4777 2497 3356 81      
  152.45.2.0/24        4777 2497 3356 81      
  152.45.3.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.4.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.5.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.6.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.8.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.9.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.10.0/24       4777 2497 3356 81      
  152.45.11.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.45.15.0/24       4777 2497 3356 81      
  152.45.20.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.45.0.0/16 4777 2497 174 81
  152.46.0.0/15        4777 2497 174 81     + Announce - aggregate of 152.46.0.0/16 (4777 2497 174 81) and 152.47.0.0/16 (4777 2497 174 81)
  152.46.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.47.0.0/16 (4777 2497 174 81)
  152.46.1.0/24        4777 2497 3356 81      
  152.46.2.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.3.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.4.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.5.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.6.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.7.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.8.0/24        4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.9.0/24        4777 2497 3356 81      
  152.46.12.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.13.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.14.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.15.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.16.0/21       4777 2497 3356 81      
  152.46.24.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.25.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.26.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.27.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.28.0/24       4777 2497 3356 81      
  152.46.29.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.30.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.31.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.32.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.33.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.34.0/24       4777 2497 3356 81      
  152.46.35.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.36.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.37.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.38.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.39.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.42.0/24       4777 2497 3356 81      
  152.46.43.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.44.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.45.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.47.0/24       4777 2497 174 81     - Withdrawn - matching aggregate 152.46.0.0/16 4777 2497 174 81
  152.46.48.0/24       4777 2497 3356 81      
  152.46.252.0/22      4777 2497 3356 81      
  152.47.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.46.0.0/16 (4777 2497 174 81)
  152.48.0.0/15        4777 2497 174 81     + Announce - aggregate of 152.48.0.0/16 (4777 2497 174 81) and 152.49.0.0/16 (4777 2497 174 81)
  152.48.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.49.0.0/16 (4777 2497 174 81)
  152.49.0.0/16        4777 2497 174 81     - Withdrawn - aggregated with 152.48.0.0/16 (4777 2497 174 81)
  152.54.0.0/16        4777 2516 3356 81      
  152.54.0.0/20        4777 2516 3356 81    - Withdrawn - matching aggregate 152.54.0.0/16 4777 2516 3356 81
  152.55.0.0/17        4777 2497 3356 81    + Announce - aggregate of 152.55.0.0/18 (4777 2497 3356 81) and 152.55.64.0/18 (4777 2497 3356 81)
  152.55.0.0/20        4777 2497 3356 81    - Withdrawn - aggregated with 152.55.16.0/20 (4777 2497 3356 81)
  152.55.16.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.0.0/20 (4777 2497 3356 81)
  152.55.32.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.48.0/20 (4777 2497 3356 81)
  152.55.48.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.32.0/20 (4777 2497 3356 81)
  152.55.64.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.80.0/20 (4777 2497 3356 81)
  152.55.80.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.64.0/20 (4777 2497 3356 81)
  152.55.96.0/20       4777 2497 3356 81    - Withdrawn - aggregated with 152.55.112.0/20 (4777 2497 3356 81)
  152.55.112.0/20      4777 2497 3356 81    - Withdrawn - aggregated with 152.55.96.0/20 (4777 2497 3356 81)
  152.60.0.0/16        4777 2516 3356 81      
  152.60.4.0/24        4777 2516 174 81       
  192.101.21.0/24      4777 2497 174 81       
  192.101.22.0/23      4777 2497 11164 81     
  192.101.22.0/24      4777 2497 174 81       
  192.101.24.0/24      4777 2497 174 81       
  192.137.210.0/24     4777 2497 174 81       
  192.154.33.0/24      4777 2516 3356 81      
  192.154.43.0/24      4777 2497 3356 81      
  192.154.48.0/24      4777 2497 174 81       
  192.154.55.0/24      4777 2497 174 81       
  192.154.58.0/24      4777 2497 174 81       
  192.154.60.0/23      4777 2497 174 81     + Announce - aggregate of 192.154.60.0/24 (4777 2497 174 81) and 192.154.61.0/24 (4777 2497 174 81)
  192.154.60.0/24      4777 2497 174 81     - Withdrawn - aggregated with 192.154.61.0/24 (4777 2497 174 81)
  192.154.61.0/24      4777 2497 174 81     - Withdrawn - aggregated with 192.154.60.0/24 (4777 2497 174 81)
  192.154.66.0/24      4777 2497 174 81       
  192.154.76.0/23      4777 2497 174 81       
  192.154.95.0/24      4777 2516 3356 81      
  192.189.244.0/24     4777 2497 174 81       
  198.85.0.0/16        4777 2497 174 81       
  198.86.0.0/16        4777 2497 174 81       
  198.86.244.0/22      4777 2497 174 81     - Withdrawn - matching aggregate 198.86.0.0/16 4777 2497 174 81
  204.84.0.0/15        4777 2497 174 81       
  204.84.80.0/20       4777 2497 174 81     - Withdrawn - matching aggregate 204.84.0.0/15 4777 2497 174 81
  204.84.112.0/21      4777 2516 3356 81      
  204.84.120.0/24      4777 2516 3356 81      
  204.85.192.0/18      4777 2497 174 81     - Withdrawn - matching aggregate 204.84.0.0/15 4777 2497 174 81
  206.107.110.0/24     4777 2497 174 81       
  206.211.64.0/19      4777 2497 174 81       

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

AS81   93 More Specifics   142 Total Advertisements   NCREN - MCNC, US
    152.22.32.0/21                152.22.0.0/16
    152.22.40.0/21                152.22.0.0/16
    152.22.48.0/21                152.22.0.0/16
    152.22.64.0/21                152.22.0.0/16
    152.22.72.0/21                152.22.0.0/16
    152.22.80.0/21                152.22.0.0/16
    152.26.16.0/24                152.26.0.0/16
    152.26.44.0/24                152.26.0.0/16
    152.26.60.0/24                152.26.0.0/16
    152.26.69.0/24                152.26.0.0/16
    152.26.208.0/24               152.26.0.0/16
    152.26.209.0/24               152.26.0.0/16
    152.26.210.0/24               152.26.0.0/16
    152.26.211.0/24               152.26.0.0/16
    152.26.212.0/24               152.26.0.0/16
    152.26.213.0/24               152.26.0.0/16
    152.27.12.0/24                152.27.0.0/16
    152.28.1.0/24                 152.28.0.0/16
    152.30.10.0/24                152.30.0.0/16
    152.30.92.0/22                152.30.0.0/16
    152.30.92.0/24                152.30.0.0/16
    152.38.17.0/24                152.38.0.0/18
    152.38.18.0/24                152.38.0.0/18
    152.38.192.0/20               152.38.192.0/18
    152.38.208.0/20               152.38.192.0/18
    152.38.224.0/19               152.38.192.0/18
    152.45.1.0/24                 152.45.0.0/16
    152.45.2.0/24                 152.45.0.0/16
    152.45.3.0/24                 152.45.0.0/16
    152.45.4.0/24                 152.45.0.0/16
    152.45.5.0/24                 152.45.0.0/16
    152.45.6.0/24                 152.45.0.0/16
    152.45.8.0/24                 152.45.0.0/16
    152.45.9.0/24                 152.45.0.0/16
    152.45.10.0/24                152.45.0.0/16
    152.45.11.0/24                152.45.0.0/16
    152.45.15.0/24                152.45.0.0/16
    152.45.20.0/24                152.45.0.0/16
    152.46.1.0/24                 152.46.0.0/16
    152.46.2.0/24                 152.46.0.0/16
    152.46.3.0/24                 152.46.0.0/16
    152.46.4.0/24                 152.46.0.0/16
    152.46.5.0/24                 152.46.0.0/16
    152.46.6.0/24                 152.46.0.0/16
    152.46.7.0/24                 152.46.0.0/16
    152.46.8.0/24                 152.46.0.0/16
    152.46.9.0/24                 152.46.0.0/16
    152.46.12.0/24                152.46.0.0/16
    152.46.13.0/24                152.46.0.0/16
    152.46.14.0/24                152.46.0.0/16
    152.46.15.0/24                152.46.0.0/16
    152.46.16.0/21                152.46.0.0/16
    152.46.24.0/24                152.46.0.0/16
    152.46.25.0/24                152.46.0.0/16
    152.46.26.0/24                152.46.0.0/16
    152.46.27.0/24                152.46.0.0/16
    152.46.28.0/24                152.46.0.0/16
    152.46.29.0/24                152.46.0.0/16
    152.46.30.0/24                152.46.0.0/16
    152.46.31.0/24                152.46.0.0/16
    152.46.32.0/24                152.46.0.0/16
    152.46.33.0/24                152.46.0.0/16
    152.46.34.0/24                152.46.0.0/16
    152.46.35.0/24                152.46.0.0/16
    152.46.36.0/24                152.46.0.0/16
    152.46.37.0/24                152.46.0.0/16
    152.46.38.0/24                152.46.0.0/16
    152.46.39.0/24                152.46.0.0/16
    152.46.42.0/24                152.46.0.0/16
    152.46.43.0/24                152.46.0.0/16
    152.46.44.0/24                152.46.0.0/16
    152.46.45.0/24                152.46.0.0/16
    152.46.47.0/24                152.46.0.0/16
    152.46.48.0/24                152.46.0.0/16
    152.46.252.0/22               152.46.0.0/16
    152.54.0.0/20                 152.54.0.0/16
    152.55.0.0/20                 152.55.0.0/17
    152.55.16.0/20                152.55.0.0/17
    152.55.32.0/20                152.55.0.0/17
    152.55.48.0/20                152.55.0.0/17
    152.55.64.0/20                152.55.0.0/17
    152.55.80.0/20                152.55.0.0/17
    152.55.96.0/20                152.55.0.0/17
    152.55.112.0/20               152.55.0.0/17
    152.60.4.0/24                 152.60.0.0/16
    192.101.22.0/24               192.101.22.0/23
    192.137.210.0/24              192.137.208.0/20
    198.86.244.0/22               198.86.0.0/16
    204.84.80.0/20                204.84.0.0/15
    204.84.112.0/21               204.84.0.0/15
    204.84.120.0/24               204.84.0.0/15
    204.85.192.0/18               204.84.0.0/15
    206.107.110.0/24              206.104.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS81 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS81\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:       81
             ASName:         NCREN
             ASHandle:       AS81
             RegDate:        1986-08-07
             Updated:        2021-06-29
             Ref:            https://rdap.arin.net/registry/autnum/81
             
             
             OrgName:        MCNC
             OrgId:          MCNC-Z
             Address:        3021 E. Cornwallis Rd
             City:           Durham
             StateProv:      NC
             PostalCode:     27713-2852
             Country:        US
             RegDate:        2021-06-14
             Updated:        2026-02-12
             Ref:            https://rdap.arin.net/registry/entity/MCNC-Z
             
             
             OrgAbuseHandle: ABUSE3348-ARIN
             OrgAbuseName:   Abuse Contact
             OrgAbusePhone:  +1-919-248-4111 
             OrgAbuseEmail:  abuse@mcnc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3348-ARIN
             
             OrgTechHandle: NCREN-ARIN
             OrgTechName:   NCREN Hostmaster
             OrgTechPhone:  +1-919-248-4111 
             OrgTechEmail:  hostmaster@ncren.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/NCREN-ARIN
             
             RTechHandle: NH34-ORG-ARIN
             RTechName:   NCREN Hostmaster
             RTechPhone:  +1-919-248-1405 
             RTechEmail:  hostmaster@ncren.net
             RTechRef:    https://rdap.arin.net/registry/entity/NH34-ORG-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.
             #