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

REN Routing Table Report cscora at frr.nsrc.org
Wed May 26 16:15:11 UTC 2021


Global R&E Routing Table Report   16:15 GMT Wed 26 May, 2021

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

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

BGP routing table entries examined:                               14543
    Prefixes after maximum aggregation (per Origin AS):            8437
    Deaggregation factor:                                          1.72
    Unique aggregates announced (without unneeded subnets):        9338
Total ASes present in the Internet Routing Table:                  2148
    Prefixes per ASN:                                              6.77
Origin-only ASes present in the Internet Routing Table:            1848
Origin ASes announcing only one prefix:                             883
Transit ASes present in the Internet Routing Table:                 300
Transit-only ASes present in the Internet Routing Table:             40
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:                      36127
Number of 32-bit ASNs visible in the Routing Table:                 453
Prefixes from 32-bit ASNs in the Routing Table:                    1340
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:                    177151456
    Equivalent to 10 /8s, 143 /16s and 29 /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:        1669

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

Prefixes being announced by APNIC Region ASes:                     3866
    Total APNIC prefixes after maximum aggregation:                2060
    APNIC Deaggregation factor:                                    1.88
Prefixes being announced from the APNIC address blocks:            3868
    Unique aggregates announced from the APNIC address blocks:     2223
APNIC Region origin ASes present in the Internet Routing Table:     464
    APNIC Prefixes per ASN:                                        8.34
APNIC Region origin ASes announcing only one prefix:                209
APNIC Region transit ASes present in the Internet Routing Table:     49
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    170
Number of APNIC addresses announced to Internet:               44954336
    Equivalent to 2 /8s, 173 /16s and 242 /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:                      5612
    Total ARIN prefixes after maximum aggregation:                 3336
    ARIN Deaggregation factor:                                     1.68
Prefixes being announced from the ARIN address blocks:             5624
    Unique aggregates announced from the ARIN address blocks:      3801
ARIN Region origin ASes present in the Internet Routing Table:      864
    ARIN Prefixes per ASN:                                         6.51
ARIN Region origin ASes announcing only one prefix:                 312
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:     104
Number of ARIN addresses announced to Internet:                71359744
    Equivalent to 4 /8s, 64 /16s and 221 /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:                      3088
    Total RIPE prefixes after maximum aggregation:                 2478
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3082
    Unique aggregates announced from the RIPE address blocks:      2575
RIPE Region origin ASes present in the Internet Routing Table:      615
    RIPE Prefixes per ASN:                                         5.01
RIPE Region origin ASes announcing only one prefix:                 296
RIPE Region transit ASes present in the Internet Routing Table:     100
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:     113
Number of RIPE addresses announced to Internet:                55870624
    Equivalent to 3 /8s, 84 /16s and 132 /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:                     866
    Total LACNIC prefixes after maximum aggregation:                394
    LACNIC Deaggregation factor:                                   2.20
Prefixes being announced from the LACNIC address blocks:            864
    Unique aggregates announced from the LACNIC address blocks:     502
LACNIC Region origin ASes present in the Internet Routing Table:    115
    LACNIC Prefixes per ASN:                                       7.51
LACNIC Region origin ASes announcing only one prefix:                46
LACNIC Region transit ASes present in the Internet Routing Table:    21
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    43
Number of LACNIC addresses announced to Internet:               2261600
    Equivalent to 0 /8s, 34 /16s and 130 /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:                   1105
    Total AfriNIC prefixes after maximum aggregation:               164
    AfriNIC Deaggregation factor:                                  6.74
Prefixes being announced from the AfriNIC address blocks:          1105
    Unique aggregates announced from the AfriNIC address blocks:    237
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     23.02
AfriNIC Region origin ASes announcing only one prefix:               20
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:   23
Number of AfriNIC addresses announced to Internet:              2705152
    Equivalent to 0 /8s, 41 /16s and 71 /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         191         75     137  KREONET-AS-KR KISTI, KR
  7575         181        331     128  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         167       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         126         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
 38280          50          3       2  MONASHUNI-MY-AS-AP Monash University Su

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         226        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          85         62      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          66        647      61  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          52        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
  1916         121        121      49  Associacao Rede Nacional de Ensino e Pe
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          66         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  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
 20191          31         16       1  Pontificia Universidad Catolica de Chil
271640          27          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 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         397         82       3  KENET-AS, KE
  2018         319        319      72  TENET-1, ZA
327687         136         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
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA
 37074           8          7       6  UG-AS, GH

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         397         82       3  KENET-AS, KE
  2018         319        319      72  TENET-1, ZA
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   376         226        180     149  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  1237         191         75     137  KREONET-AS-KR KISTI, KR
   786         187       1787     185  JANET Jisc Services Limited, GB
  7575         181        331     128  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
  7497         427          405  CSTNET-AS-AP Computer Network Information Cente
 36914         397          394  KENET-AS, KE
  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         136          133  RENU, UG
 18558         136          132  NETBLK-RCOEK, US
  2920         112          106  LACOE, US
 55824         126          105  NKN-CORE-NW NKN Core Network, IN

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     /16:1685    /17:283     /18:298     
/19:461     /20:650     /21:742     /22:1140    /23:1181    /24:7743    
/25:79      /26:59      /27:52      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         371         397  KENET-AS, KE
  8895         167         172  ISU Internet Services Unit (ISU), SA
 23024          53          56  OCDE, US
327700          33          39  MoRENet, MZ
 25977          29          32  HCCS, US
200521          25          41  SEAP-AGE, ES
  1916          24         121  Associacao Rede Nacional de Ensino e Pesquisa, 
  2614          24          62  ROEDUNET, RO
 37215          23          29  MAREN, MW
  3233          21          30  ICI-ROTLD Romanian Natioanal R&D Network, RO

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        14:83       24:2      
  31:3        37:6        38:3        41:228      42:8        44:4      
  45:37       46:6        49:10       58:4        59:19       60:4      
  61:3        62:6        63:4        64:11       66:6        67:36     
  68:1        69:14       71:1        72:11       74:8        76:7      
  77:5        78:3        79:10       80:11       81:29       82:2      
  83:8        84:3        85:25       86:6        87:1        88:1      
  89:10       91:45       93:11       94:2        95:3        96:5      
 101:3       102:8       103:206     104:5       106:1       108:3      
 109:8       110:3       111:9       112:4       114:18      116:4      
 117:9       118:32      119:19      121:21      122:8       124:40     
 125:1       128:66      129:37      130:86      131:80      132:53     
 133:137     134:83      136:191     137:117     138:9       139:4      
 140:31      141:2       142:39      143:32      144:27      146:121    
 147:25      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      161:15      162:8       163:60      164:35     
 165:14      166:1       167:15      168:96      169:8       170:45     
 172:1       173:2       175:20      176:8       177:3       178:1      
 179:6       180:21      181:1       182:5       184:3       185:35     
 186:2       187:1       188:13      190:40      191:4       192:1189   
 193:175     194:106     195:67      196:167     197:192     198:348    
 199:190     200:162     201:7       202:389     203:284     204:316    
 205:138     206:144     207:119     208:46      209:93      210:179    
 211:13      212:165     213:4       216:32      217:15      218:5      
 219:13      220:9       222:4       223:2      

End of report


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