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

REN Routing Table Report cscora at bgp.nsrc.org
Mon Apr 22 17:05:39 UTC 2024


IPv4 R&E Routing Table Report   17:05 GMT Mon 22 Apr, 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:                               12126
    Prefixes after maximum aggregation (per Origin AS):            7471
    Deaggregation factor:                                          1.62
    Unique aggregates announced (without unneeded subnets):        8187
    Number of IPv4 prefixes with a valid ROA:                      3944
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                           8182
Total ASes present in the Internet Routing Table:                  1927
    Prefixes per ASN:                                              6.29
Origin-only ASes present in the Internet Routing Table:            1653
Origin ASes announcing only one prefix:                             783
Transit ASes present in the Internet Routing Table:                 274
Transit-only ASes present in the Internet Routing Table:             52
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 ( 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:                      44225
Number of 32-bit ASNs visible in the Routing Table:                 463
Prefixes from 32-bit ASNs in the Routing Table:                    1193
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:                    156148544
    Equivalent to 9 /8s, 78 /16s and 163 /24s
    Percentage of available address space announced:                4.2
    Percentage of allocated address space announced:                4.2
    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:        1174

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

Prefixes being announced by APNIC Region ASes:                     3091
    Total APNIC prefixes after maximum aggregation:                1634
    APNIC Deaggregation factor:                                    1.89
Prefixes being announced from the APNIC address blocks:            3091
    Unique aggregates announced from the APNIC address blocks:     1725
APNIC Region origin ASes present in the Internet Routing Table:     390
    APNIC Prefixes per ASN:                                        7.93
APNIC Region origin ASes announcing only one prefix:                184
APNIC Region transit ASes present in the Internet Routing Table:     42
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    157
Number of APNIC addresses announced to Internet:               37549376
    Equivalent to 2 /8s, 60 /16s and 245 /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:                      5178
    Total ARIN prefixes after maximum aggregation:                 2964
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:             5199
    Unique aggregates announced from the ARIN address blocks:      3366
ARIN Region origin ASes present in the Internet Routing Table:      796
    ARIN Prefixes per ASN:                                         6.53
ARIN Region origin ASes announcing only one prefix:                 285
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:     126
Number of ARIN addresses announced to Internet:                60719488
    Equivalent to 3 /8s, 158 /16s and 129 /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, 393216-402332
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:                      2918
    Total RIPE prefixes after maximum aggregation:                 2434
    RIPE Deaggregation factor:                                     1.20
Prefixes being announced from the RIPE address blocks:             2907
    Unique aggregates announced from the RIPE address blocks:      2514
RIPE Region origin ASes present in the Internet Routing Table:      572
    RIPE Prefixes per ASN:                                         5.08
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:     133
Number of RIPE addresses announced to Internet:                54823808
    Equivalent to 3 /8s, 68 /16s and 139 /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:                     673
    Total LACNIC prefixes after maximum aggregation:                385
    LACNIC Deaggregation factor:                                   1.75
Prefixes being announced from the LACNIC address blocks:            672
    Unique aggregates announced from the LACNIC address blocks:     513
LACNIC Region origin ASes present in the Internet Routing Table:     89
    LACNIC Prefixes per ASN:                                       7.55
LACNIC Region origin ASes announcing only one prefix:                35
LACNIC Region transit ASes present in the Internet Routing Table:    20
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                         8
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    36
Number of LACNIC addresses announced to Internet:               2391296
    Equivalent to 0 /8s, 36 /16s and 125 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                    256
    Total AfriNIC prefixes after maximum aggregation:                46
    AfriNIC Deaggregation factor:                                  5.57
Prefixes being announced from the AfriNIC address blocks:           256
    Unique aggregates announced from the AfriNIC address blocks:     68
AfriNIC Region origin ASes present in the Internet Routing Table:    26
    AfriNIC Prefixes per ASN:                                      9.85
AfriNIC Region origin ASes announcing only one prefix:               15
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:                        8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   11
Number of AfriNIC addresses announced to Internet:               664320
    Equivalent to 0 /8s, 10 /16s and 35 /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         596       2162     465  SINET-AS Research Organization of Infor
  7497         443        180      24  CSTNET-AS-AP Computer Network Informati
  4538         189       4193      75  ERX-CERNET-BKB China Education and Rese
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  7575         170        329     114  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
132524          44          9      11  TIFR-AS Tata Institute of Fundamental R
  9270          35          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
  5786         198         16       1  UPRENET, PR
  2920         174         34       7  LACOE, US
  2152         149        507      94  CSUNET-NW, US
 18558         140         18       4  NETBLK-RCOEK, US
   270         129        332      91  AS270, US
 32440         119         34      17  LONI, US
 23024         108          7      22  OCDE, US
   376          83          7      59  RISQ-AS, CA
  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         186       1767     183  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          82        677      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
  1653          53        151      50  SUNET SUNET Swedish University Network,
200521          50          4      23  SEAP-AGE, ES

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         121         82      68  Rede Nacional de Ensino e Pesquisa, BR
 11340         108         25      51  Red Universitaria Nacional, CL
  2715          45         99      34  Fundacao Carlos Chagas Filho de Amparo 
  1251          35         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
  3597          21         16       2  Fundacion InnovaT, AR
 28571          19         40      18  UNIVERSIDADE DE SAO PAULO, BR
 27790          18          2       2  Universidad Nacional de Cordoba, AR
 52888          16          7       8  UNIVERSIDADE FEDERAL DE SAO CARLOS, 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         133         80       5  KENET-AS, KE
327700          47         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37654          11          1       6  RwEdNet-AS, RW
 37215           9          8       1  MAREN, MW
 37182           4          8       1  TERNET, TZ
328903           4          0       1  RITER, CI
 31960           3          0       2  EMUNET, MZ
 22354           2          3       2  UNIV-DAR, TZ
 37532           2         20       2  ZAMREN, ZM

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         596       2162     465  SINET-AS Research Organization of Infor
  7497         443        180      24  CSTNET-AS-AP Computer Network Informati
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch
  5786         198         16       1  UPRENET, PR
  4538         189       4193      75  ERX-CERNET-BKB China Education and Rese
   786         186       1767     183  JANET Jisc Services Limited, GB
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  2920         174         34       7  LACOE, US
  7575         170        329     114  AARNET-AS-AP Australian Academic and Re
  2152         149        507      94  CSUNET-NW, US

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         443          419  CSTNET-AS-AP Computer Network Information Cente
  5786         198          197  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
  2920         174          167  LACOE, US
 18558         140          136  NETBLK-RCOEK, US
 36914         133          128  KENET-AS, KE
  4538         189          114  ERX-CERNET-BKB China Education and Research Net
 55824         131          112  NKN-CORE-NW NKN Core Network, IN
 32440         119          102  LONI, US
 23024         108           86  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
     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      /14:34      /15:100     /16:1514    /17:269     /18:285     
/19:364     /20:536     /21:557     /22:924     /23:1032    /24:6335    
/25:37      /26:48      /27:63      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         125         133  KENET-AS, KE
 32440          87         119  LONI, US
 23024          51         108  OCDE, US
327700          41          47  MoRENet, MZ
200521          30          50  SEAP-AGE, ES
 25977          27          30  HCCS, US
 26898          24          32  LNOCA-ORG, US
 31638          21          21  ASN-LEPIDA, IT
 22742          19          66  CT-EDU-NET, US
  1916          17         121  Rede Nacional de Ensino e Pesquisa, BR

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       23:1      
  24:3        31:1        35:4        38:2        40:1        41:63     
  42:12       44:4        45:18       46:5        49:7        58:16     
  59:9        60:6        61:2        62:6        63:2        64:15     
  66:9        67:33       68:1        69:7        70:2        71:1      
  72:7        74:12       76:36       77:4        78:3        79:10     
  80:8        81:24       82:3        83:6        84:6        85:12     
  86:1        87:1        89:11       91:39       93:4        94:2      
  95:2        96:5       101:5       102:5       103:190     104:68     
 108:2       109:5       114:1       116:8       118:19      119:20     
 121:11      123:8       124:42      128:60      129:22      130:81     
 131:49      132:13      133:157     134:75      136:196     137:28     
 138:57      139:4       140:21      141:3       142:17      143:11     
 144:23      145:2       146:120     147:21      148:7       149:12     
 150:9       151:3       152:98      153:6       154:6       155:39     
 156:135     157:13      158:29      159:114     160:29      161:10     
 162:7       163:67      164:12      165:8       167:7       168:29     
 169:6       170:11      172:1       173:7       175:15      176:8      
 177:4       179:10      180:10      182:1       184:1       185:41     
 186:1       187:2       188:11      189:3       190:7       191:2      
 192:1108    193:231     194:89      195:60      196:13      197:112    
 198:305     199:171     200:142     201:1       202:343     203:168    
 204:289     205:63      206:108     207:125     208:51      209:82     
 210:87      211:2       212:41      213:3       216:49      217:10     
 219:4       220:1       222:2       223:14     

End of report


More information about the ren-bgp-stats-all mailing list