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

REN Routing Table Report cscora at frr.nsrc.org
Mon May 17 16:15:12 UTC 2021


Global R&E Routing Table Report   16:15 GMT Mon 17 May, 2021

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

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

BGP routing table entries examined:                               14451
    Prefixes after maximum aggregation (per Origin AS):            8427
    Deaggregation factor:                                          1.71
    Unique aggregates announced (without unneeded subnets):        9354
Total ASes present in the Internet Routing Table:                  2118
    Prefixes per ASN:                                              6.82
Origin-only ASes present in the Internet Routing Table:            1824
Origin ASes announcing only one prefix:                             874
Transit ASes present in the Internet Routing Table:                 294
Transit-only ASes present in the Internet Routing Table:             38
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      17
    Max AS path prepend of ASN (  5474)                              11
Prefixes from unregistered ASNs in the Routing Table:                 6
    Number of instances of unregistered ASNs:                         6
Number of 32-bit ASNs allocated by the RIRs:                      36027
Number of 32-bit ASNs visible in the Routing Table:                 440
Prefixes from 32-bit ASNs in the Routing Table:                    1308
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:                    176352448
    Equivalent to 10 /8s, 130 /16s and 236 /24s
    Percentage of available address space announced:                4.8
    Percentage of allocated address space announced:                4.8
    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:        1686

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

Prefixes being announced by APNIC Region ASes:                     3842
    Total APNIC prefixes after maximum aggregation:                2057
    APNIC Deaggregation factor:                                    1.87
Prefixes being announced from the APNIC address blocks:            3844
    Unique aggregates announced from the APNIC address blocks:     2249
APNIC Region origin ASes present in the Internet Routing Table:     452
    APNIC Prefixes per ASN:                                        8.50
APNIC Region origin ASes announcing only one prefix:                200
APNIC Region transit ASes present in the Internet Routing Table:     48
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    163
Number of APNIC addresses announced to Internet:               44816352
    Equivalent to 2 /8s, 171 /16s and 215 /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:                      5656
    Total ARIN prefixes after maximum aggregation:                 3357
    ARIN Deaggregation factor:                                     1.68
Prefixes being announced from the ARIN address blocks:             5668
    Unique aggregates announced from the ARIN address blocks:      3831
ARIN Region origin ASes present in the Internet Routing Table:      871
    ARIN Prefixes per ASN:                                         6.51
ARIN Region origin ASes announcing only one prefix:                 316
ARIN Region transit ASes present in the Internet Routing Table:     113
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     105
Number of ARIN addresses announced to Internet:                71546880
    Equivalent to 4 /8s, 67 /16s and 184 /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:                      3058
    Total RIPE prefixes after maximum aggregation:                 2473
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3052
    Unique aggregates announced from the RIPE address blocks:      2554
RIPE Region origin ASes present in the Internet Routing Table:      610
    RIPE Prefixes per ASN:                                         5.00
RIPE Region origin ASes announcing only one prefix:                 295
RIPE Region transit ASes present in the Internet Routing Table:      98
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     112
Number of RIPE addresses announced to Internet:                55859872
    Equivalent to 3 /8s, 84 /16s and 90 /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:                     758
    Total LACNIC prefixes after maximum aggregation:                368
    LACNIC Deaggregation factor:                                   2.06
Prefixes being announced from the LACNIC address blocks:            756
    Unique aggregates announced from the LACNIC address blocks:     474
LACNIC Region origin ASes present in the Internet Routing Table:    102
    LACNIC Prefixes per ASN:                                       7.41
LACNIC Region origin ASes announcing only one prefix:                44
LACNIC Region transit ASes present in the Internet Routing Table:    19
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    38
Number of LACNIC addresses announced to Internet:               1585216
    Equivalent to 0 /8s, 24 /16s and 48 /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:                   1131
    Total AfriNIC prefixes after maximum aggregation:               167
    AfriNIC Deaggregation factor:                                  6.77
Prefixes being announced from the AfriNIC address blocks:          1131
    Unique aggregates announced from the AfriNIC address blocks:    246
AfriNIC Region origin ASes present in the Internet Routing Table:    43
    AfriNIC Prefixes per ASN:                                     26.30
AfriNIC Region origin ASes announcing only one prefix:               19
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                        7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   22
Number of AfriNIC addresses announced to Internet:              2544128
    Equivalent to 0 /8s, 38 /16s and 210 /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         618       2155     455  SINET-AS Research Organization of Infor
  7497         427        210      22  CSTNET-AS-AP Computer Network Informati
  1237         189         75     139  KREONET-AS-KR KISTI, KR
  7575         187        331     133  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         163       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         127         18      21  NKN-CORE-NW NKN Core Network, IN
  1659          55       1450      34  ERX-TANET-ASN1 Taiwan Academic Network 
  2697          55          3      31  ERX-ERNET-AS Education and Research Net
132524          48          9      11  TIFR-AS Tata Institute of Fundamental R

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         227        180     149  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  2152         160        507      92  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
   270         117        297      87  AS270, US
  2920         112         34       6  LACOE, US
 21976          86         51      18  NJEDGE-NET, US
 22742          84         61      45  CT-EDU-NET, US
  1736          80         16       1  MU-AS, US
 15296          65          5      54  CYBERA, CA

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         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   786         187       1787     185  JANET Jisc Services Limited, GB
  8895         172         24       4  ISU Internet Services Unit (ISU), SA
   559         116        550     107  SWITCH Peering requests: (peering at switc
  1103          95       1520      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          67        647      62  FR-RENATER Reseau National de telecommu
  2614          62         32      59  ROEDUNET, RO
  1930          56         82      51  RCCN Fundacao para a Ciencia e a Tecnol
  1653          51        151      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
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          67         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  1916          58         24      41  Associacao Rede Nacional de Ensino e Pe
  2715          49         53      32  Fundacao Carlos Chagas Filho de Amparo 
  4270          44         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
263282          37          5      12  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
 20191          31         16       1  Pontificia Universidad Catolica de Chil
 28571          26         10      19  UNIVERSIDADE DE SAO PAULO, BR
  3597          23          2      17  Fundacion InnovaT, AR

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
 36914         417         82       3  KENET-AS, KE
  2018         319        319      72  TENET-1, ZA
327687         137         28       3  RENU, UG
  8094          55         48       4  PUKNET, ZA
327700          39         16       1  MoRENet, MZ
 37215          29          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
  2561          23          1      17  EUN, EG
 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         618       2155     455  SINET-AS Research Organization of Infor
  7497         427        210      22  CSTNET-AS-AP Computer Network Informati
 36914         417         82       3  KENET-AS, KE
  2018         319        319      72  TENET-1, ZA
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   376         227        180     149  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  1237         189         75     139  KREONET-AS-KR KISTI, KR
   786         187       1787     185  JANET Jisc Services Limited, GB
  7575         187        331     133  AARNET-AS-AP Australian Academic and Re

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

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

   ASN  No of nets  Net Savings  Description
 36914         417          414  KENET-AS, KE
  7497         427          405  CSTNET-AS-AP Computer Network Information Cente
  2018         319          247  TENET-1, ZA
  5786         201          200  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         172          168  ISU Internet Services Unit (ISU), SA
327687         137          134  RENU, UG
 18558         136          132  NETBLK-RCOEK, US
 55824         127          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
     36843  UNALLOCATED  64.56.80.0/23            11096  FLORIDANET, US
     36843  UNALLOCATED  108.59.20.0/24           11096  FLORIDANET, US
     36843  UNALLOCATED  131.91.183.0/24          11096  FLORIDANET, US
     36843  UNALLOCATED  146.201.218.0/24         11096  FLORIDANET, US
     36843  UNALLOCATED  146.201.219.0/24         11096  FLORIDANET, US
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, 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      /14:35      /15:102     /16:1678    /17:278     /18:285     
/19:453     /20:630     /21:729     /22:1126    /23:1172    /24:7738    
/25:76      /26:60      /27:56      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         389         417  KENET-AS, KE
  8895         167         172  ISU Internet Services Unit (ISU), SA
 23024          53          56  OCDE, US
327700          33          39  MoRENet, MZ
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
 25977          29          32  HCCS, US
  1916          25          58  Associacao Rede Nacional de Ensino e Pesquisa, 
  2614          24          62  ROEDUNET, RO
200521          24          40  SEAP-AGE, ES
 37215          23          29  MAREN, MW

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

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

   1:1         5:15        8:2        12:1        14:84       24:2      
  31:3        37:6        38:4        41:239      42:8        44:4      
  45:33       46:6        49:10       58:4        59:10       60:4      
  61:3        62:6        63:4        64:12       65:1        66:7      
  67:36       68:1        69:14       71:1        72:11       74:8      
  76:6        77:5        78:3        79:10       80:11       81:13     
  82:2        83:8        84:3        85:23       86:6        87:1      
  88:1        89:10       91:44       93:11       94:2        95:3      
  96:5       101:3       102:8       103:214     104:9       106:1      
 108:3       109:8       110:3       111:16      112:4       114:18     
 116:4       117:2       118:17      119:19      121:27      122:8      
 124:40      125:1       128:66      129:36      130:82      131:80     
 132:53      133:137     134:84      136:191     137:115     138:9      
 139:4       140:31      141:2       142:41      143:32      144:27     
 146:121     147:24      148:7       149:12      150:17      151:5      
 152:65      153:5       154:24      155:38      156:64      157:25     
 158:41      159:113     160:25      161:16      162:8       163:60     
 164:35      165:14      166:1       167:15      168:96      169:8      
 170:41      172:1       173:2       175:20      176:8       177:3      
 178:1       179:6       180:21      182:5       184:5       185:35     
 186:2       187:1       188:12      190:38      191:25      192:1191   
 193:184     194:104     195:76      196:169     197:199     198:350    
 199:191     200:137     201:7       202:379     203:285     204:319    
 205:140     206:144     207:122     208:47      209:93      210:178    
 211:13      212:164     213:4       216:27      217:15      218:5      
 219:13      220:9       222:4       223:2      

End of report


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