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

REN Routing Table Report cscora at frr.nsrc.org
Tue Apr 12 17:05:34 UTC 2022


IPv4 R&E Routing Table Report   17:05 GMT Tue 12 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:                               12519
    Prefixes after maximum aggregation (per Origin AS):            7656
    Deaggregation factor:                                          1.64
    Unique aggregates announced (without unneeded subnets):        8333
    Number of IPv4 prefixes with a valid ROA:                      3203
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                           9316
Total ASes present in the Internet Routing Table:                  2008
    Prefixes per ASN:                                              6.23
Origin-only ASes present in the Internet Routing Table:            1727
Origin ASes announcing only one prefix:                             841
Transit ASes present in the Internet Routing Table:                 281
Transit-only ASes present in the Internet Routing Table:             35
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      15
    Max AS path prepend of ASN (211089)                              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:                      39071
Number of 32-bit ASNs visible in the Routing Table:                 469
Prefixes from 32-bit ASNs in the Routing Table:                    1242
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:                    164318592
    Equivalent to 9 /8s, 203 /16s and 77 /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:               99.5
Total number of prefixes smaller than registry allocations:        1232

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

Prefixes being announced by APNIC Region ASes:                     3274
    Total APNIC prefixes after maximum aggregation:                1710
    APNIC Deaggregation factor:                                    1.91
Prefixes being announced from the APNIC address blocks:            3275
    Unique aggregates announced from the APNIC address blocks:     1828
APNIC Region origin ASes present in the Internet Routing Table:     423
    APNIC Prefixes per ASN:                                        7.74
APNIC Region origin ASes announcing only one prefix:                195
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:                         14
Number of APNIC region 32-bit ASNs visible in the Routing Table:    164
Number of APNIC addresses announced to Internet:               38271456
    Equivalent to 2 /8s, 71 /16s and 249 /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:                      5253
    Total ARIN prefixes after maximum aggregation:                 3127
    ARIN Deaggregation factor:                                     1.68
Prefixes being announced from the ARIN address blocks:             5267
    Unique aggregates announced from the ARIN address blocks:      3538
ARIN Region origin ASes present in the Internet Routing Table:      827
    ARIN Prefixes per ASN:                                         6.37
ARIN Region origin ASes announcing only one prefix:                 303
ARIN Region transit ASes present in the Internet Routing Table:     111
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:     117
Number of ARIN addresses announced to Internet:                68209088
    Equivalent to 4 /8s, 16 /16s and 201 /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:                      2855
    Total RIPE prefixes after maximum aggregation:                 2421
    RIPE Deaggregation factor:                                     1.18
Prefixes being announced from the RIPE address blocks:             2844
    Unique aggregates announced from the RIPE address blocks:      2484
RIPE Region origin ASes present in the Internet Routing Table:      561
    RIPE Prefixes per ASN:                                         5.07
RIPE Region origin ASes announcing only one prefix:                 264
RIPE Region transit ASes present in the Internet Routing Table:      88
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          15
Number of RIPE region 32-bit ASNs visible in the Routing Table:     117
Number of RIPE addresses announced to Internet:                55194368
    Equivalent to 3 /8s, 74 /16s and 51 /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:                     746
    Total LACNIC prefixes after maximum aggregation:                326
    LACNIC Deaggregation factor:                                   2.29
Prefixes being announced from the LACNIC address blocks:            744
    Unique aggregates announced from the LACNIC address blocks:     391
LACNIC Region origin ASes present in the Internet Routing Table:    116
    LACNIC Prefixes per ASN:                                       6.41
LACNIC Region origin ASes announcing only one prefix:                56
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:    47
Number of LACNIC addresses announced to Internet:               1693152
    Equivalent to 0 /8s, 25 /16s and 213 /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:                    387
    Total AfriNIC prefixes after maximum aggregation:                68
    AfriNIC Deaggregation factor:                                  5.69
Prefixes being announced from the AfriNIC address blocks:           387
    Unique aggregates announced from the AfriNIC address blocks:     90
AfriNIC Region origin ASes present in the Internet Routing Table:    42
    AfriNIC Prefixes per ASN:                                      9.21
AfriNIC Region origin ASes announcing only one prefix:               23
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:   24
Number of AfriNIC addresses announced to Internet:               950016
    Equivalent to 0 /8s, 14 /16s and 127 /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         586       2092     457  SINET-AS Research Organization of Infor
  7497         432        182      24  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         113         18      10  NKN-CORE-NW NKN Core Network, IN
  2697          53          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         192         16       1  UPRENET, PR
  2152         155        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
 22742          68         53      34  CT-EDU-NET, 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          95         27      75  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
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          60         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
 19611          45         17       2  Associacao Antonio Vieira - Unisinos, B
  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         25      11  UNIVERSIDADE DE SAO PAULO, BR
  3597          23          2      17  Fundacion InnovaT, AR
  1916          22         10      16  Rede Nacional de Ensino e Pesquisa, BR

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         210         82       3  KENET-AS, KE
327687          37         28       3  RENU, UG
327700          36         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37074          10          7       7  UG-AS, GH
  2561           7          0       5  EUN, EG
 37182           6          8       1  TERNET, TZ
 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         586       2092     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
   680         279       1967     245  DFN Verein zur Foerderung eines Deutsch
 36914         210         82       3  KENET-AS, KE
   376         202        178     151  RISQ-AS, CA
  5786         192         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         432          408  CSTNET-AS-AP Computer Network Information Cente
 36914         210          207  KENET-AS, KE
  5786         192          191  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
  2920         110          104  LACOE, US
 55824         113          103  NKN-CORE-NW NKN Core Network, IN
 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
    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       
/13:16      /14:33      /15:101     /16:1588    /17:256     /18:265     
/19:390     /20:560     /21:620     /22:981     /23:1067    /24:6497    
/25:43      /26:47      /27:43      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         197         210  KENET-AS, KE
 23024          53         113  OCDE, 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          22  Rede Nacional de Ensino e Pesquisa, BR
  2614          18          95  ROEDUNET, RO
 22742          18          68  CT-EDU-NET, US
 28068          18          21  Universidad Nacional de San Luis, AR

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       23:1        24:3      
  31:1        37:6        38:4        41:116      42:11       44:4      
  45:22       46:6        49:10       58:10       59:9        60:4      
  61:2        62:6        63:3        64:16       66:4        67:39     
  68:1        69:14       70:1        72:9        74:12       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        95:5        96:5       101:4      
 102:12      103:216     104:65      108:2       109:3       110:2      
 111:16      114:1       116:7       118:18      119:22      121:28     
 122:8       124:39      125:1       128:63      129:31      130:80     
 131:75      132:50      133:140     134:66      136:184     137:42     
 138:8       139:4       140:28      141:1       142:21      143:23     
 144:23      145:2       146:112     147:19      148:7       149:12     
 150:9       151:2       152:17      153:6       154:3       155:25     
 156:66      157:23      158:39      159:115     160:25      161:17     
 162:9       163:59      164:14      165:16      166:1       167:13     
 168:56      169:8       170:42      172:2       173:4       175:19     
 177:6       179:8       180:16      182:6       184:2       185:25     
 186:2       187:3       188:12      189:2       190:33      191:16     
 192:1101    193:233     194:94      195:51      196:21      197:115    
 198:315     199:186     200:126     201:7       202:343     203:194    
 204:277     205:88      206:137     207:137     208:54      209:89     
 210:85      211:2       212:21      213:2       216:47      217:10     
 219:11      220:2       222:4       223:4      

End of report


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