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

REN Routing Table Report cscora at bgp.nsrc.org
Wed Dec 20 18:30:42 UTC 2023


IPv4 R&E Routing Table Report   18:30 GMT Wed 20 Dec, 2023

  IPv4 BGP Table (R&E) as seen at UbuntuNet Alliance.

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/UbuntuNet/

Analysis Summary
----------------

BGP routing table entries examined:                               17765
    Prefixes after maximum aggregation (per Origin AS):           10244
    Deaggregation factor:                                          1.73
    Unique aggregates announced (without unneeded subnets):       11277
    Number of IPv4 prefixes with a valid ROA:                      5233
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                          12532
Total ASes present in the Internet Routing Table:                  2734
    Prefixes per ASN:                                              6.50
Origin-only ASes present in the Internet Routing Table:            2357
Origin ASes announcing only one prefix:                            1069
Transit ASes present in the Internet Routing Table:                 377
Transit-only ASes present in the Internet Routing Table:             76
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      16
    Max AS path prepend of ASN ( 47805)                              11
Prefixes from unregistered ASNs in the Routing Table:                11
    Number of instances of unregistered ASNs:                        11
Number of 32-bit ASNs allocated by the RIRs:                      43244
Number of 32-bit ASNs visible in the Routing Table:                 644
Prefixes from 32-bit ASNs in the Routing Table:                    1948
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:                    200953344
    Equivalent to 11 /8s, 250 /16s and 78 /24s
    Percentage of available address space announced:                5.4
    Percentage of allocated address space announced:                5.4
    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:        1723

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

Prefixes being announced by APNIC Region ASes:                     4644
    Total APNIC prefixes after maximum aggregation:                2265
    APNIC Deaggregation factor:                                    2.05
Prefixes being announced from the APNIC address blocks:            4644
    Unique aggregates announced from the APNIC address blocks:     2565
APNIC Region origin ASes present in the Internet Routing Table:     538
    APNIC Prefixes per ASN:                                        8.63
APNIC Region origin ASes announcing only one prefix:                232
APNIC Region transit ASes present in the Internet Routing Table:     57
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         14
Number of APNIC region 32-bit ASNs visible in the Routing Table:    207
Number of APNIC addresses announced to Internet:               45493248
    Equivalent to 2 /8s, 182 /16s and 44 /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:                      7318
    Total ARIN prefixes after maximum aggregation:                 4379
    ARIN Deaggregation factor:                                     1.67
Prefixes being announced from the ARIN address blocks:             7344
    Unique aggregates announced from the ARIN address blocks:      4839
ARIN Region origin ASes present in the Internet Routing Table:     1203
    ARIN Prefixes per ASN:                                         6.10
ARIN Region origin ASes announcing only one prefix:                 433
ARIN Region transit ASes present in the Internet Routing Table:     155
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     190
Number of ARIN addresses announced to Internet:                90873856
    Equivalent to 5 /8s, 106 /16s and 160 /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:                      3600
    Total RIPE prefixes after maximum aggregation:                 2883
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3587
    Unique aggregates announced from the RIPE address blocks:      2904
RIPE Region origin ASes present in the Internet Routing Table:      699
    RIPE Prefixes per ASN:                                         5.13
RIPE Region origin ASes announcing only one prefix:                 314
RIPE Region transit ASes present in the Internet Routing Table:     106
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     150
Number of RIPE addresses announced to Internet:                57956352
    Equivalent to 3 /8s, 116 /16s and 88 /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:                    1340
    Total LACNIC prefixes after maximum aggregation:                530
    LACNIC Deaggregation factor:                                   2.53
Prefixes being announced from the LACNIC address blocks:           1337
    Unique aggregates announced from the LACNIC address blocks:     740
LACNIC Region origin ASes present in the Internet Routing Table:    161
    LACNIC Prefixes per ASN:                                       8.30
LACNIC Region origin ASes announcing only one prefix:                61
LACNIC Region transit ASes present in the Internet Routing Table:    26
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:    65
Number of LACNIC addresses announced to Internet:               3927040
    Equivalent to 0 /8s, 59 /16s and 236 /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:                    852
    Total AfriNIC prefixes after maximum aggregation:               178
    AfriNIC Deaggregation factor:                                  4.79
Prefixes being announced from the AfriNIC address blocks:           852
    Unique aggregates announced from the AfriNIC address blocks:    228
AfriNIC Region origin ASes present in the Internet Routing Table:    55
    AfriNIC Prefixes per ASN:                                     15.49
AfriNIC Region origin ASes announcing only one prefix:               29
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      2.4
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   32
Number of AfriNIC addresses announced to Internet:              2702592
    Equivalent to 0 /8s, 41 /16s and 61 /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         593       2162     465  SINET-AS Research Organization of Infor
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  1237         193         74     142  KREONET-AS-KR KISTI, KR
  4538         183       4193      75  ERX-CERNET-BKB China Education and Rese
 58647         180         18       2  KAGAWAU-AS Kagawa University, JP
  7575         176        329     119  AARNET-AS-AP Australian Academic and Re
 55824         126         19      17  NKN-CORE-NW NKN Core Network, IN
  4762          75          4       1  MAHIDOL-BORDER-AS Mahidol University, T
  4621          70         37      10  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   376         201        162     151  RISQ-AS, CA
  2152         144        507      93  CSUNET-NW, US
 18558         141         18       4  NETBLK-RCOEK, US
    81         127        521      30  NCREN, US
   270         118        329      82  AS270, US
 23024         109          7      22  OCDE, US
  2920         102         34       7  LACOE, US
 21976          80         51      18  NJEDGE-NET, US
  1736          79         16       1  MU-AS, US
   237          72       1382      28  MERIT-AS-14, US

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         283       1899     249  DFN Verein zur Foerderung eines Deutsch
   786         185       1767     182  JANET Jisc Services Limited, GB
  8895         131         24       5  ISU Internet Services Unit ISU, SA
   559         114        533     104  SWITCH Peering requests: peering at switch
  1103          95       1503      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          94         27      74  ROEDUNET, RO
   137          81        676      77  ASGARR Consortium GARR, IT
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnol
   553          76        462      76  BELWUE BelWue-Koordination, DE
  2200          63        598      58  FR-RENATER Reseau National de telecommu

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         209        175      41  Rede Nacional de Ensino e Pesquisa, BR
 28391         154         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         106         24      50  Red Universitaria Nacional, CL
271640          68          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  4270          50         17       3  Red de Interconexion Universitaria, AR
  2715          44         99      34  Fundacao Carlos Chagas Filho de Amparo 
 61468          43          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
  3596          34          4       3  Universidad Autonoma Metropolitana, MX
263683          33         10      21  Universidad de Costa Rica, CR

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         382        319      71  TENET-1, ZA
327687         161         28       3  RENU, UG
  8094          47         48      18  PUKNET, ZA
327700          47         16       1  MoRENet, MZ
  3208          32          2       1  ARN, DZ
 36914          27         82       3  KENET-AS, KE
  6879          24          2       9  ENSTINET-, EG
 37074          14          8       2  UG-AS, GH
 37215          12          8       1  MAREN, MW
 37501          11         49       6  UOFS, ZA

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         593       2162     465  SINET-AS Research Organization of Infor
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  2018         382        319      71  TENET-1, ZA
   680         283       1899     249  DFN Verein zur Foerderung eines Deutsch
  1916         209        175      41  Rede Nacional de Ensino e Pesquisa, BR
   376         201        162     151  RISQ-AS, CA
  1237         193         74     142  KREONET-AS-KR KISTI, KR
   786         185       1767     182  JANET Jisc Services Limited, GB
  4538         183       4193      75  ERX-CERNET-BKB China Education and Rese
 58647         180         18       2  KAGAWAU-AS Kagawa University, JP

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  7497         437          414  CSTNET-AS-AP Computer Network Information Cente
  2018         382          311  TENET-1, ZA
 58647         180          178  KAGAWAU-AS Kagawa University, JP
  1916         209          168  Rede Nacional de Ensino e Pesquisa, BR
327687         161          158  RENU, UG
 18558         141          137  NETBLK-RCOEK, US
  8895         131          126  ISU Internet Services Unit ISU, SA
 55824         126          109  NKN-CORE-NW NKN Core Network, IN
  4538         183          108  ERX-CERNET-BKB China Education and Research Net
    81         127           97  NCREN, US

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
     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

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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/UbuntuNet/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       /11:1       /12:10      
/13:19      /14:35      /15:121     /16:1962    /17:421     /18:435     
/19:566     /20:825     /21:827     /22:1459    /23:1478    /24:9603    
/25:0       /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
  8895         126         131  ISU Internet Services Unit ISU, SA
 23024          52         109  OCDE, US
327700          41          47  MoRENet, MZ
 32440          38          62  LONI, US
200521          33          56  SEAP-AGE, ES
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 25977          30          44  HCCS, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 40326          29          33  ECKERD-COLLEGE, US

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:2         5:15        8:2        12:1        14:88       23:5      
  24:3        31:7        35:6        38:8        40:1        41:64     
  42:16       44:7        45:42       46:5        47:1        49:9      
  50:1        52:1        58:11       59:20       60:5        61:3      
  62:11       63:32       64:48       65:1        66:39       67:40     
  68:10       69:17       70:2        71:1        72:7        74:51     
  76:41       77:9        78:3        79:10       80:12       81:25     
  82:7        83:7        84:8        85:27       86:4        87:1      
  89:10       91:50       92:2        93:4        94:4        95:2      
  96:5        97:1        98:2       101:5       102:36      103:269    
 104:73      108:8       109:7       111:15      114:23      116:8      
 117:61      118:33      119:18      121:29      122:8       123:8      
 124:40      125:5       128:85      129:44      130:83      131:61     
 132:63      133:155     134:106     136:10      137:126     138:9      
 139:4       140:38      141:3       142:38      143:23      144:25     
 145:2       146:133     147:49      148:193     149:12      150:44     
 151:12      152:133     153:14      154:30      155:63      156:66     
 157:18      158:34      159:115     160:30      161:15      162:20     
 163:76      164:10      165:47      166:1       167:13      168:119    
 169:8       170:77      171:1       172:3       173:7       175:18     
 176:8       177:5       179:12      180:15      181:1       182:1      
 184:2       185:61      186:3       187:17      188:14      189:3      
 190:18      191:3       192:1410    193:303     194:140     195:97     
 196:201     197:5       198:442     199:241     200:312     201:37     
 202:622     203:423     204:345     205:125     206:183     207:149    
 208:71      209:109     210:194     211:15      212:159     213:5      
 216:84      217:9       218:22      219:6       220:16      222:3      
 223:14     

End of report


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