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

REN Routing Table Report cscora at frr.nsrc.org
Wed Mar 22 17:05:37 UTC 2023


IPv4 R&E Routing Table Report   17:05 GMT Wed 22 Mar, 2023

  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:                               13649
    Prefixes after maximum aggregation (per Origin AS):            8171
    Deaggregation factor:                                          1.67
    Unique aggregates announced (without unneeded subnets):        9070
    Number of IPv4 prefixes with a valid ROA:                      3721
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                           9928
Total ASes present in the Internet Routing Table:                  2121
    Prefixes per ASN:                                              6.44
Origin-only ASes present in the Internet Routing Table:            1838
Origin ASes announcing only one prefix:                             841
Transit ASes present in the Internet Routing Table:                 283
Transit-only ASes present in the Internet Routing Table:             47
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN (204437)                              11
Prefixes from unregistered ASNs in the Routing Table:                 3
    Number of instances of unregistered ASNs:                         3
Number of 32-bit ASNs allocated by the RIRs:                      41495
Number of 32-bit ASNs visible in the Routing Table:                 486
Prefixes from 32-bit ASNs in the Routing Table:                    1323
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:              1
Number of addresses announced to Internet:                    167960512
    Equivalent to 10 /8s, 2 /16s and 223 /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:        1453

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

Prefixes being announced by APNIC Region ASes:                     3475
    Total APNIC prefixes after maximum aggregation:                1787
    APNIC Deaggregation factor:                                    1.94
Prefixes being announced from the APNIC address blocks:            3476
    Unique aggregates announced from the APNIC address blocks:     1962
APNIC Region origin ASes present in the Internet Routing Table:     445
    APNIC Prefixes per ASN:                                        7.81
APNIC Region origin ASes announcing only one prefix:                206
APNIC Region transit ASes present in the Internet Routing Table:     47
Average APNIC Region AS path length visible:                        4.2
    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:               38131808
    Equivalent to 2 /8s, 69 /16s and 216 /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:                      6005
    Total ARIN prefixes after maximum aggregation:                 3501
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:             6020
    Unique aggregates announced from the ARIN address blocks:      3947
ARIN Region origin ASes present in the Internet Routing Table:      937
    ARIN Prefixes per ASN:                                         6.42
ARIN Region origin ASes announcing only one prefix:                 321
ARIN Region transit ASes present in the Internet Routing Table:     120
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:     133
Number of ARIN addresses announced to Internet:                72128256
    Equivalent to 4 /8s, 76 /16s and 151 /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:                      2913
    Total RIPE prefixes after maximum aggregation:                 2448
    RIPE Deaggregation factor:                                     1.19
Prefixes being announced from the RIPE address blocks:             2903
    Unique aggregates announced from the RIPE address blocks:      2529
RIPE Region origin ASes present in the Internet Routing Table:      566
    RIPE Prefixes per ASN:                                         5.13
RIPE Region origin ASes announcing only one prefix:                 258
RIPE Region transit ASes present in the Internet Routing Table:      84
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:     126
Number of RIPE addresses announced to Internet:                55228032
    Equivalent to 3 /8s, 74 /16s and 182 /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:                     772
    Total LACNIC prefixes after maximum aggregation:                382
    LACNIC Deaggregation factor:                                   2.02
Prefixes being announced from the LACNIC address blocks:            768
    Unique aggregates announced from the LACNIC address blocks:     560
LACNIC Region origin ASes present in the Internet Routing Table:     96
    LACNIC Prefixes per ASN:                                       8.00
LACNIC Region origin ASes announcing only one prefix:                46
LACNIC Region transit ASes present in the Internet Routing Table:    19
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                         9
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    36
Number of LACNIC addresses announced to Internet:               1659104
    Equivalent to 0 /8s, 25 /16s and 80 /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:                    481
    Total AfriNIC prefixes after maximum aggregation:                50
    AfriNIC Deaggregation factor:                                  9.62
Prefixes being announced from the AfriNIC address blocks:           481
    Unique aggregates announced from the AfriNIC address blocks:     71
AfriNIC Region origin ASes present in the Internet Routing Table:    27
    AfriNIC Prefixes per ASN:                                     17.81
AfriNIC Region origin ASes announcing only one prefix:               10
AfriNIC Region transit ASes present in the Internet Routing Table:    8
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   11
Number of AfriNIC addresses announced to Internet:               813056
    Equivalent to 0 /8s, 12 /16s and 104 /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         600       2157     464  SINET-AS Research Organization of Infor
  7497         433        182      24  CSTNET-AS-AP Computer Network Informati
  4538         189       4192      73  ERX-CERNET-BKB China Education and Rese
 58647         178         18       2  KAGAWAU-AS Kagawa University, JP
  7575         173        329     119  AARNET-AS-AP Australian Academic and Re
 55824         118         18      11  NKN-CORE-NW NKN Core Network, IN
  4621          65          6      46  UNINET-AS-AP UNINET-, TH
  2697          55          3      33  ERX-ERNET-AS Education and Research Net
 45773          47          3       5  HECPERN-AS-PK PERN AS Content Servie Pr
  9903          46          3       3  RIT-AS-AP Rajamangala Institute of Tech

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
  5786         199         16       1  UPRENET, PR
  2152         152        507      92  CSUNET-NW, US
 18558         134         18       4  NETBLK-RCOEK, US
   270         120        329      85  AS270, US
 23024         111          7      19  OCDE, US
  2920         109         34       7  LACOE, US
 32440          99         18      21  LONI, US
 32531          90          6      60  FORDHAM-UNIVERSITY, US
 21976          85         51      18  NJEDGE-NET, US
   376          81         22      60  RISQ-AS, 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         283       1919     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1775     183  JANET Jisc Services Limited, GB
   559         113        533     105  SWITCH Peering requests: peering at switch
  1103          95       1518      84  SURFNET-NL SURFnet, The Netherlands, NL
  2614          94         27      74  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  1930          65         81      60  RCCN Fundacao para a Ciencia e a Tecnol
  2200          64        599      59  FR-RENATER Reseau National de telecommu
200521          55          4      21  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         213         79     103  Rede Nacional de Ensino e Pesquisa, BR
 11340         104         24      47  Red Universitaria Nacional, CL
  1251          59         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
263683          32         10      20  Universidad de Costa Rica, CR
 28571          31         38      13  UNIVERSIDADE DE SAO PAULO, BR
 20191          28         16       1  Pontificia Universidad Catolica de Chil
 61468          27          2      14  CEDIA, EC
  3597          23          2      17  Fundacion InnovaT, AR
 27790          18          2       2  Universidad Nacional de Cordoba, AR
 28609          16          1       1  Instituto Nupef, 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         247         82       3  KENET-AS, KE
327687          60         28       3  RENU, UG
  3208          32          2       1  ARN, DZ
 37182          32          8       1  TERNET, TZ
327700          31         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37654          10          1       6  RwEdNet-AS, RW
  2561           7          0       5  EUN, EG
328358           5          1       1  Makerere-AS, UG
 30983           4          4       1  MARWAN-AS, MA

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         600       2157     464  SINET-AS Research Organization of Infor
  7497         433        182      24  CSTNET-AS-AP Computer Network Informati
   680         283       1919     249  DFN Verein zur Foerderung eines Deutsch
 36914         247         82       3  KENET-AS, KE
  1916         213         79     103  Rede Nacional de Ensino e Pesquisa, BR
  5786         199         16       1  UPRENET, PR
  4538         189       4192      73  ERX-CERNET-BKB China Education and Rese
   786         186       1775     183  JANET Jisc Services Limited, GB
 58647         178         18       2  KAGAWAU-AS Kagawa University, JP
  7575         173        329     119  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         433          409  CSTNET-AS-AP Computer Network Information Cente
 36914         247          244  KENET-AS, KE
  5786         199          198  UPRENET, PR
 58647         178          176  KAGAWAU-AS Kagawa University, JP
 18558         134          130  NETBLK-RCOEK, US
  4538         189          116  ERX-CERNET-BKB China Education and Research Net
  1916         213          110  Rede Nacional de Ensino e Pesquisa, BR
 55824         118          107  NKN-CORE-NW NKN Core Network, IN
  2920         109          102  LACOE, US
 23024         111           92  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
     18621  UNALLOCATED  142.156.0.0/16           26677  ORION-ASN, CA
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

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

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      /15:102     /16:1627    /17:291     /18:307     
/19:411     /20:595     /21:629     /22:1017    /23:1148    /24:7278    
/25:49      /26:58      /27:75      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         234         247  KENET-AS, KE
 32440          79          99  LONI, US
 23024          51         111  OCDE, US
  1916          38         213  Rede Nacional de Ensino e Pesquisa, BR
200521          32          55  SEAP-AGE, ES
 37182          31          32  TERNET, TZ
 25977          27          30  HCCS, US
327700          26          31  MoRENet, MZ
 36794          24          26  SCOCA, US
 31638          21          21  ASN-LEPIDA, IT

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        14:89       23:4      
  24:3        31:1        35:6        38:5        41:134      42:11     
  44:4        45:19       46:6        49:6        58:12       59:9      
  60:4        61:2        62:6        63:4        64:30       65:1      
  66:5        67:33       68:1        69:9        70:2        72:7      
  74:16       76:40       77:4        78:3        79:10       80:8      
  81:27       82:2        83:6        84:6        85:24       86:1      
  87:1        89:10       91:35       93:4        94:2        95:2      
  96:5       101:4       102:7       103:214     104:72      108:6      
 109:3       110:2       111:16      114:1       116:6       118:18     
 119:21      121:28      122:8       123:8       124:38      125:1      
 128:63      129:29      130:84      131:50      132:43      133:157    
 134:66      136:198     137:82      138:9       139:5       140:30     
 141:1       142:38      143:21      144:23      145:2       146:119    
 147:21      148:7       149:12      150:99      151:7       152:30     
 153:6       154:6       155:40      156:66      157:22      158:32     
 159:114     160:27      161:17      162:14      163:72      164:8      
 165:11      167:13      168:57      169:8       170:15      172:2      
 173:7       175:25      177:4       179:10      180:14      182:1      
 185:33      186:1       187:2       188:12      189:3       190:14     
 191:1       192:1193    193:268     194:92      195:57      196:26     
 197:151     198:353     199:199     200:230     201:21      202:472    
 203:257     204:298     205:76      206:137     207:114     208:59     
 209:105     210:89      211:1       212:43      213:2       216:53     
 217:10      219:11      220:5       222:3       223:9      

End of report


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