[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view

REN Routing Table Report cscora at frr.nsrc.org
Fri Sep 16 17:05:40 UTC 2022


IPv4 R&E Routing Table Report   17:05 GMT Fri 16 Sep, 2022

  IPv4 BGP Table (R&E) as seen at ASREN.

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

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

BGP routing table entries examined:                               12609
    Prefixes after maximum aggregation (per Origin AS):            7694
    Deaggregation factor:                                          1.64
    Unique aggregates announced (without unneeded subnets):        8468
    Number of IPv4 prefixes with a valid ROA:                      3476
    Number of IPv4 prefixes with an invalid ROA:                     47
    Number of IPv4 prefixes with no ROA:                           9086
Total ASes present in the Internet Routing Table:                  1980
    Prefixes per ASN:                                              6.37
Origin-only ASes present in the Internet Routing Table:            1703
Origin ASes announcing only one prefix:                             821
Transit ASes present in the Internet Routing Table:                 277
Transit-only ASes present in the Internet Routing Table:             42
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      15
    Max AS path prepend of ASN (  1149)                              11
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      40161
Number of 32-bit ASNs visible in the Routing Table:                 475
Prefixes from 32-bit ASNs in the Routing Table:                    1272
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:              2
Number of addresses announced to Internet:                    161139552
    Equivalent to 9 /8s, 154 /16s and 203 /24s
    Percentage of available address space announced:                4.4
    Percentage of allocated address space announced:                4.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:        1285

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

Prefixes being announced by APNIC Region ASes:                     3272
    Total APNIC prefixes after maximum aggregation:                1737
    APNIC Deaggregation factor:                                    1.88
Prefixes being announced from the APNIC address blocks:            3273
    Unique aggregates announced from the APNIC address blocks:     1860
APNIC Region origin ASes present in the Internet Routing Table:     441
    APNIC Prefixes per ASN:                                        7.42
APNIC Region origin ASes announcing only one prefix:                209
APNIC Region transit ASes present in the Internet Routing Table:     52
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    180
Number of APNIC addresses announced to Internet:               38284544
    Equivalent to 2 /8s, 72 /16s and 45 /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:                      5182
    Total ARIN prefixes after maximum aggregation:                 3063
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5191
    Unique aggregates announced from the ARIN address blocks:      3522
ARIN Region origin ASes present in the Internet Routing Table:      779
    ARIN Prefixes per ASN:                                         6.66
ARIN Region origin ASes announcing only one prefix:                 277
ARIN Region transit ASes present in the Internet Routing Table:     108
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     112
Number of ARIN addresses announced to Internet:                63534976
    Equivalent to 3 /8s, 201 /16s and 119 /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:                      2876
    Total RIPE prefixes after maximum aggregation:                 2432
    RIPE Deaggregation factor:                                     1.18
Prefixes being announced from the RIPE address blocks:             2868
    Unique aggregates announced from the RIPE address blocks:      2514
RIPE Region origin ASes present in the Internet Routing Table:      563
    RIPE Prefixes per ASN:                                         5.09
RIPE Region origin ASes announcing only one prefix:                 262
RIPE Region transit ASes present in the Internet Routing Table:      81
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          15
Number of RIPE region 32-bit ASNs visible in the Routing Table:     122
Number of RIPE addresses announced to Internet:                55257984
    Equivalent to 3 /8s, 75 /16s and 43 /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:                     864
    Total LACNIC prefixes after maximum aggregation:                396
    LACNIC Deaggregation factor:                                   2.18
Prefixes being announced from the LACNIC address blocks:            864
    Unique aggregates announced from the LACNIC address blocks:     479
LACNIC Region origin ASes present in the Internet Routing Table:    123
    LACNIC Prefixes per ASN:                                       7.02
LACNIC Region origin ASes announcing only one prefix:                59
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                         9
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    49
Number of LACNIC addresses announced to Internet:               3271520
    Equivalent to 0 /8s, 49 /16s and 235 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                    411
    Total AfriNIC prefixes after maximum aggregation:                62
    AfriNIC Deaggregation factor:                                  6.63
Prefixes being announced from the AfriNIC address blocks:           411
    Unique aggregates announced from the AfriNIC address blocks:     91
AfriNIC Region origin ASes present in the Internet Routing Table:    28
    AfriNIC Prefixes per ASN:                                     14.68
AfriNIC Region origin ASes announcing only one prefix:               14
AfriNIC Region transit ASes present in the Internet Routing Table:    7
Average AfriNIC Region AS path length visible:                      4.1
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   12
Number of AfriNIC addresses announced to Internet:               790016
    Equivalent to 0 /8s, 12 /16s and 14 /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         575       2156     458  SINET-AS Research Organization of Infor
  7497         427        177      19  CSTNET-AS-AP Computer Network Informati
  4538         187       4192      73  ERX-CERNET-BKB China Education and Rese
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  2697          54          3      32  ERX-ERNET-AS Education and Research Net
132524          44          9      11  TIFR-AS Tata Institute of Fundamental R
  9270          33          5       6  APAN-KR-AS National Infomation Society 
 24361          33         56      17  CNGI-NJ-IX-AS-AP CERNET2 IX at Southeas

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         201        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         159        507      91  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
   270         120        329      85  AS270, US
 23024         113          7      19  OCDE, US
  2920         111         34       7  LACOE, US
 32531          90          6      60  FORDHAM-UNIVERSITY, US
 21976          87         51      18  NJEDGE-NET, US
  1736          81         16       1  MU-AS, 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         281       1935     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1775     183  JANET Jisc Services Limited, GB
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          99       1520      87  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      75  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          64        599      59  FR-RENATER Reseau National de telecommu
  1930          58         81      53  RCCN Fundacao para a Ciencia e a Tecnol
200521          52          4      20  SEAP-AGE, ES
  1653          50        151      47  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         155        193      47  Rede Nacional de Ensino e Pesquisa, BR
 11340          96         24      54  Red Universitaria Nacional, CL
  1251          58         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
 28571          38         39      17  UNIVERSIDADE DE SAO PAULO, BR
 61468          37          2      13  CEDIA, EC
263683          32         10      20  Universidad de Costa Rica, CR
 20191          31         16       1  Pontificia Universidad Catolica de Chil
271640          27          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  3597          23          2      17  Fundacion InnovaT, AR
 28068          20          1       1  Universidad Nacional de San Luis, 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         245         82       3  KENET-AS, KE
327687          38         28       3  RENU, UG
327700          33         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          17          1      13  TERNET, TZ
 37654          10          1       6  RwEdNet-AS, RW
  2561           7          0       5  EUN, EG
 37215           5          8       1  MAREN, MW
 30983           4          4       1  MARWAN-AS, MA
328813           4          0       1  UCU-AS, UG

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         575       2156     458  SINET-AS Research Organization of Infor
  7497         427        177      19  CSTNET-AS-AP Computer Network Informati
   680         281       1935     249  DFN Verein zur Foerderung eines Deutsch
 36914         245         82       3  KENET-AS, KE
   376         201        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  4538         187       4192      73  ERX-CERNET-BKB China Education and Rese
   786         186       1775     183  JANET Jisc Services Limited, GB
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP

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          408  CSTNET-AS-AP Computer Network Information Cente
 36914         245          242  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
 18558         137          133  NETBLK-RCOEK, US
  4538         187          114  ERX-CERNET-BKB China Education and Research Net
  1916         155          108  Rede Nacional de Ensino e Pesquisa, BR
 55824         115          104  NKN-CORE-NW NKN Core Network, IN
  2920         111          104  LACOE, US
 23024         113           94  OCDE, 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
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
    395514  UNALLOCATED  205.213.88.0/24           2381  WISCNET1-AS, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

Prefixes from the Special Purpose Address Registry (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/ASREN/data-spar

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

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  UNASSIGNED
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24       Origin:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24      Transit:     20965  GEANT The GEANT IP Service, NL

Complete listing at https://bgp.nsrc.org/REN/ASREN/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       /11:0       /12:9       
/13:17      /14:33      /15:100     /16:1541    /17:251     /18:269     
/19:380     /20:568     /21:602     /22:934     /23:1071    /24:6648    
/25:53      /26:53      /27:77      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         232         245  KENET-AS, KE
 23024          53         113  OCDE, US
 32440          48          50  LONI, US
200521          31          52  SEAP-AGE, ES
 25977          28          31  HCCS, US
327700          28          33  MoRENet, MZ
 31638          21          21  ASN-LEPIDA, IT
  1916          19         155  Rede Nacional de Ensino e Pesquisa, BR
  3233          19          29  ICI-ROTLD Romanian National R&D Network, RO
 22742          18          67  CT-EDU-NET, US

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

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

   5:15        8:2        12:1        14:86       24:2        31:2      
  35:4        38:4        41:126      42:11       44:4        45:18     
  46:5        49:10       58:11       59:9        60:4        61:2      
  62:6        64:16       65:1        66:4        67:33       68:1      
  69:12       70:2        72:7        74:8        76:4        77:3      
  78:3        79:10       80:7        81:27       82:1        83:6      
  84:6        85:23       86:3        87:1        88:1        89:10     
  91:34       93:4        94:2        95:4        96:5       101:4      
 102:7       103:232     104:68      108:3       109:3       110:2      
 111:5       114:1       116:6       118:18      119:22      121:27     
 122:8       123:8       124:39      125:1       128:62      129:28     
 130:85      131:65      132:49      133:145     134:69      136:199    
 137:41      138:11      139:4       140:30      141:1       142:19     
 143:19      144:23      145:2       146:115     147:19      148:7      
 149:12      150:99      151:2       152:8       153:6       154:5      
 155:25      156:66      157:23      158:38      159:114     160:26     
 161:17      162:9       163:70      164:6       165:12      167:11     
 168:32      169:8       170:14      172:2       173:6       175:24     
 177:6       179:9       180:17      181:1       182:4       185:31     
 186:2       187:3       188:12      189:3       190:31      191:1      
 192:1087    193:237     194:92      195:57      196:22      197:147    
 198:317     199:179     200:192     201:19      202:350     203:179    
 204:291     205:89      206:138     207:133     208:53      209:91     
 210:84      212:45      213:2       216:48      217:10      219:11     
 220:3       222:4       223:6      

End of report


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