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

REN Routing Table Report cscora at bgp.nsrc.org
Tue Mar 19 17:05:37 UTC 2024


IPv4 R&E Routing Table Report   17:05 GMT Tue 19 Mar, 2024

  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:                               13664
    Prefixes after maximum aggregation (per Origin AS):            8221
    Deaggregation factor:                                          1.66
    Unique aggregates announced (without unneeded subnets):        9103
    Number of IPv4 prefixes with a valid ROA:                      4578
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                           9086
Total ASes present in the Internet Routing Table:                  2108
    Prefixes per ASN:                                              6.48
Origin-only ASes present in the Internet Routing Table:            1826
Origin ASes announcing only one prefix:                             831
Transit ASes present in the Internet Routing Table:                 282
Transit-only ASes present in the Internet Routing Table:             53
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:                                      16
    Max AS path prepend of ASN ( 30116)                              10
Prefixes from unregistered ASNs in the Routing Table:                10
    Number of instances of unregistered ASNs:                        10
Number of 32-bit ASNs allocated by the RIRs:                      43854
Number of 32-bit ASNs visible in the Routing Table:                 499
Prefixes from 32-bit ASNs in the Routing Table:                    1548
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:                    163604416
    Equivalent to 9 /8s, 192 /16s and 103 /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:        1346

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

Prefixes being announced by APNIC Region ASes:                     3681
    Total APNIC prefixes after maximum aggregation:                1957
    APNIC Deaggregation factor:                                    1.88
Prefixes being announced from the APNIC address blocks:            3681
    Unique aggregates announced from the APNIC address blocks:     2163
APNIC Region origin ASes present in the Internet Routing Table:     445
    APNIC Prefixes per ASN:                                        8.27
APNIC Region origin ASes announcing only one prefix:                197
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:                         16
Number of APNIC region 32-bit ASNs visible in the Routing Table:    172
Number of APNIC addresses announced to Internet:               38456416
    Equivalent to 2 /8s, 74 /16s and 204 /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, 131072-153913
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:                      5709
    Total ARIN prefixes after maximum aggregation:                 3349
    ARIN Deaggregation factor:                                     1.70
Prefixes being announced from the ARIN address blocks:             5733
    Unique aggregates announced from the ARIN address blocks:      3800
ARIN Region origin ASes present in the Internet Routing Table:      901
    ARIN Prefixes per ASN:                                         6.36
ARIN Region origin ASes announcing only one prefix:                 313
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:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     141
Number of ARIN addresses announced to Internet:                66344064
    Equivalent to 3 /8s, 244 /16s and 84 /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:                      2953
    Total RIPE prefixes after maximum aggregation:                 2463
    RIPE Deaggregation factor:                                     1.20
Prefixes being announced from the RIPE address blocks:             2942
    Unique aggregates announced from the RIPE address blocks:      2551
RIPE Region origin ASes present in the Internet Routing Table:      575
    RIPE Prefixes per ASN:                                         5.12
RIPE Region origin ASes announcing only one prefix:                 264
RIPE Region transit ASes present in the Internet Routing Table:      85
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          12
Number of RIPE region 32-bit ASNs visible in the Routing Table:     130
Number of RIPE addresses announced to Internet:                54879616
    Equivalent to 3 /8s, 69 /16s and 101 /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
                       196608-216475
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:                     876
    Total LACNIC prefixes after maximum aggregation:                403
    LACNIC Deaggregation factor:                                   2.17
Prefixes being announced from the LACNIC address blocks:            872
    Unique aggregates announced from the LACNIC address blocks:     527
LACNIC Region origin ASes present in the Internet Routing Table:    110
    LACNIC Prefixes per ASN:                                       7.93
LACNIC Region origin ASes announcing only one prefix:                46
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                         9
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    47
Number of LACNIC addresses announced to Internet:               3162976
    Equivalent to 0 /8s, 48 /16s and 67 /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:                    435
    Total AfriNIC prefixes after maximum aggregation:                41
    AfriNIC Deaggregation factor:                                 10.61
Prefixes being announced from the AfriNIC address blocks:           435
    Unique aggregates announced from the AfriNIC address blocks:     61
AfriNIC Region origin ASes present in the Internet Routing Table:    22
    AfriNIC Prefixes per ASN:                                     19.77
AfriNIC Region origin ASes announcing only one prefix:               11
AfriNIC Region transit ASes present in the Internet Routing Table:    5
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                        6
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    9
Number of AfriNIC addresses announced to Internet:               761088
    Equivalent to 0 /8s, 11 /16s and 157 /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         595       2162     464  SINET-AS Research Organization of Infor
  7497         441        180      23  CSTNET-AS-AP Computer Network Informati
  1237         193         74     142  KREONET-AS-KR KISTI, KR
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  4538         178       4193      74  ERX-CERNET-BKB China Education and Rese
  7575         173        329     116  AARNET-AS-AP Australian Academic and Re
 55824         131         19      19  NKN-CORE-NW NKN Core Network, IN
  2697          58          4      34  ERX-ERNET-AS Education and Research Net
 45773          48          3       5  HECPERN-AS-PK PERN AS Content Servie Pr
132524          44          9      11  TIFR-AS Tata Institute of Fundamental R

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         198         16       1  UPRENET, PR
  2152         145        507      94  CSUNET-NW, US
 18558         141         18       4  NETBLK-RCOEK, US
   376         126        154      88  RISQ-AS, CA
   270         117        328      81  AS270, US
 32440         117         34      19  LONI, US
 23024         107          7      22  OCDE, US
  2920         102         34       7  LACOE, US
  1736          79         16       1  MU-AS, US
 21976          79         51      18  NJEDGE-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         284       1899     250  DFN Verein zur Foerderung eines Deutsch
   786         184       1767     181  JANET Jisc Services Limited, GB
   559         114        533     104  SWITCH Peering requests: peering at switch
  1103          95       1503      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         27      73  ROEDUNET, RO
   137          81        676      77  ASGARR Consortium GARR, IT
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnol
  2200          63        598      58  FR-RENATER Reseau National de telecommu
200521          56          4      20  SEAP-AGE, ES
  1653          53        151      50  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         172        175      42  Rede Nacional de Ensino e Pesquisa, BR
 11340         108         25      51  Red Universitaria Nacional, CL
271640          67          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 61468          41          3      13  CEDIA, EC
  2715          38         66      28  Fundacao Carlos Chagas Filho de Amparo 
  1251          34         32      25  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
263683          32         10      20  Universidad de Costa Rica, CR
 20191          27          2      23  Pontificia Universidad Catolica de Chil
 28571          19         40      18  UNIVERSIDADE DE SAO PAULO, BR
 27790          18          2       2  Universidad Nacional de Cordoba, 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
327687         163         28       3  RENU, UG
 36914         153         82       3  KENET-AS, KE
327700          44         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37654          11          1       6  RwEdNet-AS, RW
 37215           9          8       1  MAREN, MW
 37182           6          8       1  TERNET, TZ
328358           5          1       1  Makerere-AS, UG
328813           4          0       1  UCU-AS, UG
 31960           3          0       2  EMUNET, MZ

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         595       2162     464  SINET-AS Research Organization of Infor
  7497         441        180      23  CSTNET-AS-AP Computer Network Informati
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch
  5786         198         16       1  UPRENET, PR
  1237         193         74     142  KREONET-AS-KR KISTI, KR
   786         184       1767     181  JANET Jisc Services Limited, GB
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  4538         178       4193      74  ERX-CERNET-BKB China Education and Rese
  7575         173        329     116  AARNET-AS-AP Australian Academic and Re
  1916         172        175      42  Rede Nacional de Ensino e Pesquisa, BR

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         441          418  CSTNET-AS-AP Computer Network Information Cente
  5786         198          197  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
327687         163          160  RENU, UG
 36914         153          150  KENET-AS, KE
 18558         141          137  NETBLK-RCOEK, US
  1916         172          130  Rede Nacional de Ensino e Pesquisa, BR
 55824         131          112  NKN-CORE-NW NKN Core Network, IN
  4538         178          104  ERX-CERNET-BKB China Education and Research Net
 32440         117           98  LONI, 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
     11570  UNALLOCATED  192.94.216.0/24          40498  ABQG, US
     11570  UNALLOCATED  192.207.226.0/24         40498  ABQG, US
     11570  UNALLOCATED  198.59.106.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.107.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.108.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.188.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.189.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.190.0/24          40498  ABQG, US
     11570  UNALLOCATED  204.134.85.0/24          40498  ABQG, 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  RESERVED, ZZ
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       /10:1       /11:0       /12:9       
/13:17      /14:33      /15:100     /16:1598    /17:293     /18:314     
/19:392     /20:616     /21:636     /22:1057    /23:1153    /24:7268    
/25:53      /26:50      /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         144         153  KENET-AS, KE
 32440          85         117  LONI, US
 23024          52         107  OCDE, US
327700          38          44  MoRENet, MZ
200521          33          56  SEAP-AGE, ES
327687          28         163  RENU, UG
 25977          27          30  HCCS, US
  1916          26         172  Rede Nacional de Ensino e Pesquisa, BR
 26898          24          32  LNOCA-ORG, 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        14:91       23:3      
  24:3        31:1        35:4        38:4        41:74       42:12     
  44:4        45:29       46:5        49:9        58:10       59:9      
  60:6        61:2        62:6        63:3        64:23       65:1      
  66:15       67:32       68:1        69:8        70:2        72:7      
  74:17       76:39       77:4        78:3        79:10       80:8      
  81:25       82:2        83:6        84:6        85:24       86:1      
  87:1        89:10       91:39       93:4        94:2        95:2      
  96:5       101:5       102:28      103:227     104:67      108:7      
 109:5       111:16      114:8       116:8       118:19      119:20     
 121:28      122:8       123:8       124:42      125:1       128:61     
 129:25      130:82      131:50      132:18      133:157     134:100    
 136:196     137:127     138:57      139:4       140:24      141:3      
 142:24      143:13      144:23      145:2       146:120     147:23     
 148:7       149:11      150:22      151:7       152:101     153:6      
 154:6       155:48      156:67      157:11      158:30      159:114    
 160:30      161:10      162:8       163:78      164:13      165:9      
 167:13      168:27      169:7       170:17      172:3       173:6      
 175:17      176:8       177:4       179:12      180:14      182:1      
 184:1       185:42      186:2       187:1       188:11      189:3      
 190:16      191:1       192:1192    193:231     194:91      195:60     
 196:59      197:118     198:362     199:190     200:222     201:21     
 202:379     203:274     204:297     205:83      206:117     207:119    
 208:49      209:100     210:189     211:3       212:42      213:2      
 216:51      217:10      218:2       219:4       220:3       222:3      
 223:14     

End of report


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