[REN-BGP-stats-all] Global R&E Routing Table Report - CERNET R&E view

REN Routing Table Report cscora at frr.nsrc.org
Thu Aug 19 20:10:57 UTC 2021


Global R&E Routing Table Report   20:10 GMT Thu 19 Aug, 2021

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/CERNET/

Analysis Summary
----------------

BGP routing table entries examined:                               17091
    Prefixes after maximum aggregation (per Origin AS):            9790
    Deaggregation factor:                                          1.75
    Unique aggregates announced (without unneeded subnets):       11024
Total ASes present in the Internet Routing Table:                  2654
    Prefixes per ASN:                                              6.44
Origin-only ASes present in the Internet Routing Table:            2273
Origin ASes announcing only one prefix:                            1068
Transit ASes present in the Internet Routing Table:                 381
Transit-only ASes present in the Internet Routing Table:             73
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 10497)                              11
Prefixes from unregistered ASNs in the Routing Table:                24
    Number of instances of unregistered ASNs:                        24
Number of 32-bit ASNs allocated by the RIRs:                      36944
Number of 32-bit ASNs visible in the Routing Table:                 586
Prefixes from 32-bit ASNs in the Routing Table:                    1678
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              5
Number of addresses announced to Internet:                    196883408
    Equivalent to 11 /8s, 188 /16s and 51 /24s
    Percentage of available address space announced:                5.3
    Percentage of allocated address space announced:                5.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:        1879

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                     3900
    Total APNIC prefixes after maximum aggregation:                2141
    APNIC Deaggregation factor:                                    1.82
Prefixes being announced from the APNIC address blocks:            3902
    Unique aggregates announced from the APNIC address blocks:     2504
APNIC Region origin ASes present in the Internet Routing Table:     535
    APNIC Prefixes per ASN:                                        7.29
APNIC Region origin ASes announcing only one prefix:                233
APNIC Region transit ASes present in the Internet Routing Table:     52
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    199
Number of APNIC addresses announced to Internet:               45056000
    Equivalent to 2 /8s, 175 /16s and 128 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-147769
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                      7458
    Total ARIN prefixes after maximum aggregation:                 4118
    ARIN Deaggregation factor:                                     1.81
Prefixes being announced from the ARIN address blocks:             7486
    Unique aggregates announced from the ARIN address blocks:      4660
ARIN Region origin ASes present in the Internet Routing Table:     1145
    ARIN Prefixes per ASN:                                         6.54
ARIN Region origin ASes announcing only one prefix:                 421
ARIN Region transit ASes present in the Internet Routing Table:     157
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     155
Number of ARIN addresses announced to Internet:                86935184
    Equivalent to 5 /8s, 46 /16s and 134 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      3363
    Total RIPE prefixes after maximum aggregation:                 2739
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3354
    Unique aggregates announced from the RIPE address blocks:      2746
RIPE Region origin ASes present in the Internet Routing Table:      670
    RIPE Prefixes per ASN:                                         5.01
RIPE Region origin ASes announcing only one prefix:                 322
RIPE Region transit ASes present in the Internet Routing Table:     110
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     129
Number of RIPE addresses announced to Internet:                58030336
    Equivalent to 3 /8s, 117 /16s and 121 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-213403
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    1452
    Total LACNIC prefixes after maximum aggregation:                588
    LACNIC Deaggregation factor:                                   2.47
Prefixes being announced from the LACNIC address blocks:           1450
    Unique aggregates announced from the LACNIC address blocks:     815
LACNIC Region origin ASes present in the Internet Routing Table:    176
    LACNIC Prefixes per ASN:                                       8.24
LACNIC Region origin ASes announcing only one prefix:                69
LACNIC Region transit ASes present in the Internet Routing Table:    26
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        12
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    75
Number of LACNIC addresses announced to Internet:               4190016
    Equivalent to 0 /8s, 63 /16s and 239 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                    894
    Total AfriNIC prefixes after maximum aggregation:               186
    AfriNIC Deaggregation factor:                                  4.81
Prefixes being announced from the AfriNIC address blocks:           894
    Unique aggregates announced from the AfriNIC address blocks:    294
AfriNIC Region origin ASes present in the Internet Routing Table:    49
    AfriNIC Prefixes per ASN:                                     18.24
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   13
Average AfriNIC Region AS path length visible:                      4.1
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   28
Number of AfriNIC addresses announced to Internet:              2670592
    Equivalent to 0 /8s, 40 /16s and 192 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         608       2156     456  SINET-AS Research Organization of Infor
  1237         188         74     135  KREONET-AS-KR KISTI, KR
  7575         180        330     126  AARNET-AS-AP Australian Academic and Re
 58647         164         18       2  KAGAWAU-AS Kagawa University, JP
 55824         129         19      23  NKN-CORE-NW NKN Core Network, IN
  4538         111       4160      69  ERX-CERNET-BKB China Education and Rese
  4621          81         37      10  UNINET-AS-AP UNINET-, TH
  4762          65          4       1  MAHIDOL-BORDER-AS Mahidol University, T
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
  1659          57       1466      35  ERX-TANET-ASN1 Taiwan Academic Network 

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7896         240         51       7  NU-AS, US
   376         234        180     158  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  2152         156        507      85  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
  2920         111         34       6  LACOE, US
 21976          86         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US
     3          78        528      13  MIT-GATEWAYS, US
  3477          72         71      42  NOAA-NWAVE, US

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   786         186       1763     184  JANET Jisc Services Limited, GB
  8895         141         24       4  ISU Internet Services Unit ISU, SA
   559         116        550     107  SWITCH Peering requests: peering at switch
  1103          98       1520      85  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
   553          72        449      72  BELWUE BelWue-Koordination, DE
  2200          66        647      61  FR-RENATER Reseau National de telecommu
  2614          62         32      59  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         181        207      41  Associacao Rede Nacional de Ensino e Pe
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
 19611          44         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          43         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
 28571          37         26      15  UNIVERSIDADE DE SAO PAULO, BR

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         331        319      74  TENET-1, ZA
327687         135         28       3  RENU, UG
 36914          98         82       3  KENET-AS, KE
  2561          72          5      31  EUN, EG
  8094          55         48       4  PUKNET, ZA
327700          39         16       1  MoRENet, MZ
 37215          32          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37182          12          8       1  TERNET, TZ
 37074          11          8       2  UG-AS, GH

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         608       2156     456  SINET-AS Research Organization of Infor
  2018         331        319      74  TENET-1, ZA
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
  7896         240         51       7  NU-AS, US
   376         234        180     158  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  1237         188         74     135  KREONET-AS-KR KISTI, KR
   786         186       1763     184  JANET Jisc Services Limited, GB
  1916         181        207      41  Associacao Rede Nacional de Ensino e Pe
  7575         180        330     126  AARNET-AS-AP Australian Academic and Re

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  2018         331          257  TENET-1, ZA
  7896         240          233  NU-AS, US
  5786         201          200  UPRENET, PR
 58647         164          162  KAGAWAU-AS Kagawa University, JP
  1916         181          140  Associacao Rede Nacional de Ensino e Pesquisa, 
  8895         141          137  ISU Internet Services Unit ISU, SA
 18558         137          133  NETBLK-RCOEK, US
327687         135          132  RENU, UG
 55824         129          106  NKN-CORE-NW NKN Core Network, IN
  2920         111          105  LACOE, US

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     36843  UNALLOCATED  64.56.80.0/23            11096  FLORIDANET, US
     19658  UNALLOCATED  65.205.131.0/24          11096  FLORIDANET, US
     36843  UNALLOCATED  108.59.20.0/24           11096  FLORIDANET, US
     36843  UNALLOCATED  108.59.23.0/24           11096  FLORIDANET, US
     36843  UNALLOCATED  131.91.183.0/24          11096  FLORIDANET, US
     36843  UNALLOCATED  131.91.252.0/22          11096  FLORIDANET, US
     14822  UNALLOCATED  140.163.0.0/16           10466  MAGPI, US
     14822  UNALLOCATED  140.163.0.0/17           10466  MAGPI, US
     14822  UNALLOCATED  140.163.6.0/24           10466  MAGPI, US
     14822  UNALLOCATED  140.163.64.0/24          10466  MAGPI, US

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-dsua

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  UNASSIGNED
                    Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24       Origin:      1103  SURFNET-NL SURFnet, The Netherlands, NL
                    Transit:     11537  INTERNET2-RESEARCH-EDU, US
192.107.242.0/24     Origin:    394784  UNASSIGNED
                    Transit:     40831  PHS, US
204.194.253.0/24     Origin:     46788  UNASSIGNED
                    Transit:      2381  WISCNET1-AS, US
205.166.145.0/24     Origin:    394784  UNASSIGNED
                    Transit:     40831  PHS, US

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:0        /9:1       /10:2       /11:1       /12:10      
/13:18      /14:32      /15:112     /16:1925    /17:372     /18:411     
/19:543     /20:801     /21:822     /22:1312    /23:1357    /24:9287    
/25:29      /26:24      /27:31      /28:1       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
  8895         136         141  ISU Internet Services Unit ISU, SA
 36914          85          98  KENET-AS, KE
 23024          53          56  OCDE, US
327700          33          39  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 25977          31          45  HCCS, US
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 32440          29          44  LONI, US
 40326          29          33  ECKERD-COLLEGE, US

Complete listing at https://bgp.nsrc.org/REN/CERNET/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:3         5:15        8:2        12:1        14:84       18:41     
  23:7        24:6        31:6        37:6        38:9        40:1      
  41:144      44:5        45:55       46:7        47:1        49:8      
  50:1        52:1        59:3        61:3        62:7        63:34     
  64:46       65:1        66:37       67:43       68:8        69:21     
  71:1        72:11       74:20       76:32       77:6        78:3      
  79:10       80:14       81:29       82:4        83:7        84:9      
  85:34       86:9        87:1        88:1        89:9        91:46     
  92:1        93:19       94:4        95:5        96:5        97:1      
  98:2       102:10      103:258     104:19      108:8       109:8      
 110:3       111:20      112:4       114:23      116:5       117:61     
 119:3       121:17      125:4       128:81      129:173     130:95     
 131:89      132:60      133:137     134:94      136:193     137:139    
 138:10      139:5       140:36      141:2       142:43      143:39     
 144:54      146:124     147:66      148:159     149:13      150:36     
 151:6       152:75      153:11      154:24      155:48      156:65     
 157:25      158:44      159:19      160:25      161:16      162:19     
 163:61      164:40      165:54      166:1       167:16      168:130    
 169:10      170:51      171:1       172:2       173:2       175:31     
 176:8       177:10      178:1       179:12      180:20      181:11     
 182:6       184:8       185:38      186:3       187:18      188:13     
 189:6       190:48      191:36      192:1237    193:246     194:140    
 195:93      196:175     197:5       198:441     199:239     200:256    
 201:39      202:554     203:418     204:346     205:172     206:177    
 207:167     208:56      209:110     210:111     211:13      212:169    
 213:4       216:79      217:15      218:6       219:7       220:16     
 222:2      

End of report


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