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

REN Routing Table Report cscora at frr.nsrc.org
Sat Apr 23 17:05:35 UTC 2022


IPv4 R&E Routing Table Report   17:05 GMT Sat 23 Apr, 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:                               12983
    Prefixes after maximum aggregation (per Origin AS):            7962
    Deaggregation factor:                                          1.63
    Unique aggregates announced (without unneeded subnets):        8778
    Number of IPv4 prefixes with a valid ROA:                      3360
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                           9623
Total ASes present in the Internet Routing Table:                  2065
    Prefixes per ASN:                                              6.29
Origin-only ASes present in the Internet Routing Table:            1781
Origin ASes announcing only one prefix:                             857
Transit ASes present in the Internet Routing Table:                 284
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:                 7
    Number of instances of unregistered ASNs:                         7
Number of 32-bit ASNs allocated by the RIRs:                      39186
Number of 32-bit ASNs visible in the Routing Table:                 479
Prefixes from 32-bit ASNs in the Routing Table:                    1266
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:                    167008384
    Equivalent to 9 /8s, 244 /16s and 88 /24s
    Percentage of available address space announced:                4.5
    Percentage of allocated address space announced:                4.5
    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:                     3306
    Total APNIC prefixes after maximum aggregation:                1714
    APNIC Deaggregation factor:                                    1.93
Prefixes being announced from the APNIC address blocks:            3307
    Unique aggregates announced from the APNIC address blocks:     1855
APNIC Region origin ASes present in the Internet Routing Table:     427
    APNIC Prefixes per ASN:                                        7.74
APNIC Region origin ASes announcing only one prefix:                196
APNIC Region transit ASes present in the Internet Routing Table:     50
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    166
Number of APNIC addresses announced to Internet:               38266336
    Equivalent to 2 /8s, 71 /16s and 229 /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:                      5469
    Total ARIN prefixes after maximum aggregation:                 3290
    ARIN Deaggregation factor:                                     1.66
Prefixes being announced from the ARIN address blocks:             5486
    Unique aggregates announced from the ARIN address blocks:      3753
ARIN Region origin ASes present in the Internet Routing Table:      864
    ARIN Prefixes per ASN:                                         6.35
ARIN Region origin ASes announcing only one prefix:                 318
ARIN Region transit ASes present in the Internet Routing Table:     112
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:     119
Number of ARIN addresses announced to Internet:                69606816
    Equivalent to 4 /8s, 38 /16s and 29 /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:                      2862
    Total RIPE prefixes after maximum aggregation:                 2423
    RIPE Deaggregation factor:                                     1.18
Prefixes being announced from the RIPE address blocks:             2852
    Unique aggregates announced from the RIPE address blocks:      2488
RIPE Region origin ASes present in the Internet Routing Table:      558
    RIPE Prefixes per ASN:                                         5.11
RIPE Region origin ASes announcing only one prefix:                 259
RIPE Region transit ASes present in the Internet Routing Table:      86
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:     116
Number of RIPE addresses announced to Internet:                55199232
    Equivalent to 3 /8s, 74 /16s and 70 /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:                     938
    Total LACNIC prefixes after maximum aggregation:                456
    LACNIC Deaggregation factor:                                   2.06
Prefixes being announced from the LACNIC address blocks:            936
    Unique aggregates announced from the LACNIC address blocks:     587
LACNIC Region origin ASes present in the Internet Routing Table:    131
    LACNIC Prefixes per ASN:                                       7.15
LACNIC Region origin ASes announcing only one prefix:                61
LACNIC Region transit ASes present in the Internet Routing Table:    19
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    52
Number of LACNIC addresses announced to Internet:               3006208
    Equivalent to 0 /8s, 45 /16s and 223 /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:                    401
    Total AfriNIC prefixes after maximum aggregation:                72
    AfriNIC Deaggregation factor:                                  5.57
Prefixes being announced from the AfriNIC address blocks:           400
    Unique aggregates announced from the AfriNIC address blocks:     93
AfriNIC Region origin ASes present in the Internet Routing Table:    44
    AfriNIC Prefixes per ASN:                                      9.09
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:    8
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:   26
Number of AfriNIC addresses announced to Internet:               929280
    Equivalent to 0 /8s, 14 /16s and 46 /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         587       2092     457  SINET-AS Research Organization of Infor
  7497         424        177      19  CSTNET-AS-AP Computer Network Informati
  4538         189       4192      73  ERX-CERNET-BKB China Education and Rese
 58647         179         18       2  KAGAWAU-AS Kagawa University, JP
  7575         176        330     123  AARNET-AS-AP Australian Academic and Re
 55824         114         18      10  NKN-CORE-NW NKN Core Network, IN
  2697          54          3      32  ERX-ERNET-AS Education and Research Net
132524          49          9      11  TIFR-AS Tata Institute of Fundamental R
 45773          47          3       5  HECPERN-AS-PK PERN AS Content Servie Pr
  9270          34          5       6  APAN-KR-AS National Infomation Society 

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         202        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         154        507      89  CSUNET-NW, US
 18558         135         18       4  NETBLK-RCOEK, US
   270         120        329      88  AS270, US
 23024         113          7      19  OCDE, US
  2920         110         34       6  LACOE, US
 21976          85         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US
  3477          73         54      45  NOAA-NWAVE, 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         279       1967     245  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          99       1520      86  SURFNET-NL SURFnet, The Netherlands, NL
  2614          96         27      76  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          66        647      61  FR-RENATER Reseau National de telecommu
  1930          58         81      53  RCCN Fundacao para a Ciencia e a Tecnol
  1653          51        167      48  SUNET SUNET Swedish University Network,
  1741          40        165      19  FUNETAS, FI

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         149        158      87  Rede Nacional de Ensino e Pesquisa, BR
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          60         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          57        101      37  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
  3597          23          2      17  Fundacion InnovaT, AR
 28068          21          2       2  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         212         82       3  KENET-AS, KE
327687          38         28       3  RENU, UG
327700          36         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          11          8       1  TERNET, TZ
 37074          10          7       7  UG-AS, GH
  2561           7          0       5  EUN, EG
 31960           5          1       1  EMUNET, MZ
 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         587       2092     457  SINET-AS Research Organization of Infor
  7497         424        177      19  CSTNET-AS-AP Computer Network Informati
   680         279       1967     245  DFN Verein zur Foerderung eines Deutsch
 36914         212         82       3  KENET-AS, KE
   376         202        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  4538         189       4192      73  ERX-CERNET-BKB China Education and Rese
   786         186       1774     183  JANET Jisc Services Limited, GB
 58647         179         18       2  KAGAWAU-AS Kagawa University, JP
  7575         176        330     123  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         424          405  CSTNET-AS-AP Computer Network Information Cente
 36914         212          209  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         179          177  KAGAWAU-AS Kagawa University, JP
 18558         135          131  NETBLK-RCOEK, US
  4538         189          116  ERX-CERNET-BKB China Education and Research Net
 55824         114          104  NKN-CORE-NW NKN Core Network, IN
  2920         110          104  LACOE, US
 23024         113           94  OCDE, US
  1736          80           79  MU-AS, 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
     22226  UNALLOCATED  156.1.0.0/16              2152  CSUNET-NW, US
     14212  UNALLOCATED  198.189.240.0/24          2152  CSUNET-NW, US
     14212  UNALLOCATED  205.155.0.0/19            2152  CSUNET-NW, US
     14212  UNALLOCATED  205.155.240.0/20          2152  CSUNET-NW, 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      /14:34      /15:101     /16:1622    /17:256     /18:282     
/19:395     /20:583     /21:622     /22:1006    /23:1075    /24:6800    
/25:49      /26:56      /27:73      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         199         212  KENET-AS, KE
 23024          53         113  OCDE, US
 32440          43          46  LONI, US
327700          32          36  MoRENet, MZ
 25977          29          43  HCCS, US
 31638          21          21  ASN-LEPIDA, IT
  3233          19          29  ICI-ROTLD Romanian National R&D Network, RO
  1916          18         149  Rede Nacional de Ensino e Pesquisa, BR
  2614          18          96  ROEDUNET, RO
 22742          18          69  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        14:84       23:2        24:3      
  31:1        35:1        37:6        38:5        40:1        41:121    
  42:11       44:4        45:23       46:6        49:10       58:10     
  59:9        60:4        61:2        62:6        63:2        64:16     
  66:4        67:39       68:1        69:12       70:1        72:9      
  74:11       77:7        78:3        79:10       80:7        81:27     
  82:1        83:6        84:6        85:19       86:4        87:1      
  88:1        89:10       91:32       93:23       94:2        95:4      
  96:5        97:1       101:4       102:12      103:224     104:66     
 108:2       109:3       110:2       111:16      114:1       116:7      
 118:18      119:22      121:28      122:8       123:8       124:39     
 125:1       128:66      129:30      130:80      131:75      132:50     
 133:140     134:67      136:193     137:64      138:8       139:4      
 140:31      141:1       142:21      143:23      144:23      145:2      
 146:112     147:19      148:7       149:12      150:9       151:6      
 152:57      153:6       154:3       155:25      156:66      157:24     
 158:39      159:113     160:25      161:18      162:9       163:60     
 164:13      165:18      166:1       167:13      168:56      169:9      
 170:43      172:2       173:4       175:19      177:7       179:8      
 180:16      181:1       182:6       184:6       185:25      186:3      
 187:3       188:12      189:5       190:33      191:1       192:1140   
 193:234     194:94      195:51      196:23      197:118     198:335    
 199:187     200:198     201:23      202:347     203:193     204:287    
 205:111     206:138     207:142     208:54      209:90      210:85     
 211:2       212:21      213:2       216:50      217:10      219:11     
 220:2       222:4       223:4      

End of report


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