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

REN Routing Table Report cscora at frr.nsrc.org
Mon Oct 25 17:05:29 UTC 2021


Global R&E Routing Table Report   17:05 GMT Mon 25 Oct, 2021

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

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

BGP routing table entries examined:                               14226
    Prefixes after maximum aggregation (per Origin AS):            8275
    Deaggregation factor:                                          1.72
    Unique aggregates announced (without unneeded subnets):        9150
Total ASes present in the Internet Routing Table:                  2160
    Prefixes per ASN:                                              6.59
Origin-only ASes present in the Internet Routing Table:            1859
Origin ASes announcing only one prefix:                             901
Transit ASes present in the Internet Routing Table:                 301
Transit-only ASes present in the Internet Routing Table:             36
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN (  5474)                              11
Prefixes from unregistered ASNs in the Routing Table:                14
    Number of instances of unregistered ASNs:                        14
Number of 32-bit ASNs allocated by the RIRs:                      37644
Number of 32-bit ASNs visible in the Routing Table:                 488
Prefixes from 32-bit ASNs in the Routing Table:                    1448
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                    174531072
    Equivalent to 10 /8s, 103 /16s and 34 /24s
    Percentage of available address space announced:                4.7
    Percentage of allocated address space announced:                4.7
    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:        1568

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

Prefixes being announced by APNIC Region ASes:                     3931
    Total APNIC prefixes after maximum aggregation:                2076
    APNIC Deaggregation factor:                                    1.89
Prefixes being announced from the APNIC address blocks:            3933
    Unique aggregates announced from the APNIC address blocks:     2285
APNIC Region origin ASes present in the Internet Routing Table:     463
    APNIC Prefixes per ASN:                                        8.49
APNIC Region origin ASes announcing only one prefix:                204
APNIC Region transit ASes present in the Internet Routing Table:     50
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    173
Number of APNIC addresses announced to Internet:               44796512
    Equivalent to 2 /8s, 171 /16s and 138 /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, 131072-151865
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:                      5156
    Total ARIN prefixes after maximum aggregation:                 3083
    ARIN Deaggregation factor:                                     1.67
Prefixes being announced from the ARIN address blocks:             5179
    Unique aggregates announced from the ARIN address blocks:      3518
ARIN Region origin ASes present in the Internet Routing Table:      836
    ARIN Prefixes per ASN:                                         6.19
ARIN Region origin ASes announcing only one prefix:                 312
ARIN Region transit ASes present in the Internet Routing Table:     109
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          13
Number of ARIN region 32-bit ASNs visible in the Routing Table:     109
Number of ARIN addresses announced to Internet:                67963392
    Equivalent to 4 /8s, 13 /16s and 10 /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:                      3176
    Total RIPE prefixes after maximum aggregation:                 2529
    RIPE Deaggregation factor:                                     1.26
Prefixes being announced from the RIPE address blocks:             3167
    Unique aggregates announced from the RIPE address blocks:      2599
RIPE Region origin ASes present in the Internet Routing Table:      628
    RIPE Prefixes per ASN:                                         5.04
RIPE Region origin ASes announcing only one prefix:                 306
RIPE Region transit ASes present in the Internet Routing Table:      98
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     122
Number of RIPE addresses announced to Internet:                56052928
    Equivalent to 3 /8s, 87 /16s and 76 /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:                    1104
    Total LACNIC prefixes after maximum aggregation:                419
    LACNIC Deaggregation factor:                                   2.63
Prefixes being announced from the LACNIC address blocks:           1102
    Unique aggregates announced from the LACNIC address blocks:     518
LACNIC Region origin ASes present in the Internet Routing Table:    143
    LACNIC Prefixes per ASN:                                       7.71
LACNIC Region origin ASes announcing only one prefix:                56
LACNIC Region transit ASes present in the Internet Routing Table:    22
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    58
Number of LACNIC addresses announced to Internet:               3021792
    Equivalent to 0 /8s, 46 /16s and 27 /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:                    845
    Total AfriNIC prefixes after maximum aggregation:               162
    AfriNIC Deaggregation factor:                                  5.22
Prefixes being announced from the AfriNIC address blocks:           845
    Unique aggregates announced from the AfriNIC address blocks:    230
AfriNIC Region origin ASes present in the Internet Routing Table:    51
    AfriNIC Prefixes per ASN:                                     16.57
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   26
Number of AfriNIC addresses announced to Internet:              2696448
    Equivalent to 0 /8s, 41 /16s and 37 /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         620       2156     457  SINET-AS Research Organization of Infor
  7497         428        182      24  CSTNET-AS-AP Computer Network Informati
  1237         188         74     135  KREONET-AS-KR KISTI, KR
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
  4538         172       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         128         19      22  NKN-CORE-NW NKN Core Network, IN
  2697          55          3      31  ERX-ERNET-AS Education and Research Net
  1659          51       1434      33  ERX-TANET-ASN1 Taiwan Academic Network 
  9317          49         16       1  ITISNET-AS INHA UNIVERSITY, KR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   376         231        180     156  RISQ-AS, CA
  5786         196         16       1  UPRENET, PR
  2152         156        507      85  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
  2920         112         34       6  LACOE, US
 21976          86         51      18  NJEDGE-NET, US
  3477          72         71      42  NOAA-NWAVE, US
 22742          70         53      34  CT-EDU-NET, US
 15296          64          5      54  CYBERA, CA
 23024          56          4       3  OCDE, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         276       1998     238  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         177         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          95       1520      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          67        647      61  FR-RENATER Reseau National de telecommu
  2614          59         33      57  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol
  1653          52        167      49  SUNET SUNET Swedish University Network,

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         183        161      32  Associacao Rede Nacional de Ensino e Pe
 11340          93         24      53  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
 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
263282          37          5      12  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
 20191          31         16       1  Pontificia Universidad Catolica de Chil

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         340        319      71  TENET-1, ZA
327687         135         28       3  RENU, UG
 36914         100         82       3  KENET-AS, KE
  8094          50         48       4  PUKNET, ZA
327700          42         16       1  MoRENet, MZ
 37215          32          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37182          14          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         620       2156     457  SINET-AS Research Organization of Infor
  7497         428        182      24  CSTNET-AS-AP Computer Network Informati
  2018         340        319      71  TENET-1, ZA
   680         276       1998     238  DFN Verein zur Foerderung eines Deutsch
   376         231        180     156  RISQ-AS, CA
  5786         196         16       1  UPRENET, PR
  1237         188         74     135  KREONET-AS-KR KISTI, KR
   786         186       1774     183  JANET Jisc Services Limited, GB
  1916         183        161      32  Associacao Rede Nacional de Ensino e Pe
  8895         177         24       4  ISU Internet Services Unit ISU, SA

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

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

   ASN  No of nets  Net Savings  Description
  7497         428          404  CSTNET-AS-AP Computer Network Information Cente
  2018         340          269  TENET-1, ZA
  5786         196          195  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         177          173  ISU Internet Services Unit ISU, SA
  1916         183          151  Associacao Rede Nacional de Ensino e Pesquisa, 
 18558         137          133  NETBLK-RCOEK, US
327687         135          132  RENU, UG
 55824         128          106  NKN-CORE-NW NKN Core Network, IN
  2920         112          106  LACOE, US

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     14822  UNALLOCATED  140.163.6.0/24           10466  MAGPI, US
     14822  UNALLOCATED  140.163.64.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.70.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.128.0/17         10466  MAGPI, US
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
    396334  UNALLOCATED  205.143.136.0/21          5078  ONENET-AS-1, US
    396334  UNALLOCATED  205.143.136.0/24          5078  ONENET-AS-1, US
    396334  UNALLOCATED  205.143.137.0/24          5078  ONENET-AS-1, US
    396334  UNALLOCATED  205.143.138.0/24          5078  ONENET-AS-1, US
    396334  UNALLOCATED  205.143.139.0/24          5078  ONENET-AS-1, US

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

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      
/13:19      /14:33      /15:108     /16:1649    /17:276     /18:307     
/19:437     /20:668     /21:735     /22:1135    /23:1190    /24:7468    
/25:74      /26:60      /27:53      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
  8895         172         177  ISU Internet Services Unit ISU, SA
 36914          86         100  KENET-AS, KE
 23024          53          56  OCDE, US
327700          36          42  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
 25977          29          36  HCCS, US
200521          29          48  SEAP-AGE, ES
  1916          27         183  Associacao Rede Nacional de Ensino e Pesquisa, 
 37215          26          32  MAREN, MW

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

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

   1:2         5:15        8:2        12:1        14:84       23:3      
  24:5        31:1        37:6        38:4        41:150      42:9      
  44:4        45:40       46:6        49:10       58:4        59:11     
  60:4        61:3        62:6        63:5        64:13       66:23     
  67:34       68:1        69:17       72:12       74:14       77:6      
  78:3        79:10       80:16       81:26       82:3        83:7      
  84:3        85:28       86:9        87:1        88:1        89:10     
  91:46       93:18       94:2        95:4        96:5       101:4      
 102:17      103:223     104:4       106:1       108:4       109:9      
 110:3       111:16      112:4       114:23      116:5       117:5      
 118:17      119:20      121:27      122:8       123:8       124:39     
 125:1       128:66      129:33      130:82      131:78      132:54     
 133:138     134:34      136:187     137:102     138:8       139:4      
 140:33      141:2       142:21      143:33      144:27      146:119    
 147:23      148:7       149:12      150:19      151:6       152:23     
 153:6       154:24      155:36      156:67      157:25      158:39     
 159:116     160:25      161:16      162:11      163:60      164:36     
 165:53      166:1       167:11      168:100     169:8       170:43     
 172:1       175:21      176:8       177:7       178:1       179:10     
 180:21      182:6       184:1       185:33      186:2       187:17     
 188:13      189:3       190:51      191:30      192:1084    193:183    
 194:108     195:58      196:180     197:5       198:323     199:183    
 200:219     201:38      202:370     203:279     204:308     205:143    
 206:140     207:132     208:42      209:87      210:176     211:3      
 212:171     213:4       216:43      217:14      218:5       219:13     
 220:12      222:5       223:2      

End of report


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