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

REN Routing Table Report cscora at bgp.nsrc.org
Sun Dec 31 17:15:40 UTC 2023


IPv4 R&E Routing Table Report   17:15 GMT Sun 31 Dec, 2023

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

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

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

BGP routing table entries examined:                               18546
    Prefixes after maximum aggregation (per Origin AS):           10309
    Deaggregation factor:                                          1.80
    Unique aggregates announced (without unneeded subnets):       11378
    Number of IPv4 prefixes with a valid ROA:                      5821
    Number of IPv4 prefixes with an invalid ROA:                      0
    Number of IPv4 prefixes with no ROA:                          12725
Total ASes present in the Internet Routing Table:                  2638
    Prefixes per ASN:                                              7.03
Origin-only ASes present in the Internet Routing Table:            2280
Origin ASes announcing only one prefix:                            1017
Transit ASes present in the Internet Routing Table:                 358
Transit-only ASes present in the Internet Routing Table:             62
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      15
    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:                      43286
Number of 32-bit ASNs visible in the Routing Table:                 624
Prefixes from 32-bit ASNs in the Routing Table:                    1990
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:                    202127616
    Equivalent to 12 /8s, 12 /16s and 57 /24s
    Percentage of available address space announced:                5.5
    Percentage of allocated address space announced:                5.5
    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:        2119

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

Prefixes being announced by APNIC Region ASes:                     4605
    Total APNIC prefixes after maximum aggregation:                2248
    APNIC Deaggregation factor:                                    2.05
Prefixes being announced from the APNIC address blocks:            4605
    Unique aggregates announced from the APNIC address blocks:     2534
APNIC Region origin ASes present in the Internet Routing Table:     533
    APNIC Prefixes per ASN:                                        8.64
APNIC Region origin ASes announcing only one prefix:                228
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:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    206
Number of APNIC addresses announced to Internet:               45413632
    Equivalent to 2 /8s, 180 /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:                      7892
    Total ARIN prefixes after maximum aggregation:                 4644
    ARIN Deaggregation factor:                                     1.70
Prefixes being announced from the ARIN address blocks:             7918
    Unique aggregates announced from the ARIN address blocks:      5170
ARIN Region origin ASes present in the Internet Routing Table:     1228
    ARIN Prefixes per ASN:                                         6.45
ARIN Region origin ASes announcing only one prefix:                 435
ARIN Region transit ASes present in the Internet Routing Table:     153
Average ARIN Region AS path length visible:                         5.2
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     192
Number of ARIN addresses announced to Internet:                92899840
    Equivalent to 5 /8s, 137 /16s and 138 /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:                      3277
    Total RIPE prefixes after maximum aggregation:                 2657
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3264
    Unique aggregates announced from the RIPE address blocks:      2682
RIPE Region origin ASes present in the Internet Routing Table:      594
    RIPE Prefixes per ASN:                                         5.49
RIPE Region origin ASes announcing only one prefix:                 266
RIPE Region transit ASes present in the Internet Routing Table:      95
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:     128
Number of RIPE addresses announced to Internet:                57005568
    Equivalent to 3 /8s, 101 /16s and 214 /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:                    1436
    Total LACNIC prefixes after maximum aggregation:                573
    LACNIC Deaggregation factor:                                   2.51
Prefixes being announced from the LACNIC address blocks:           1433
    Unique aggregates announced from the LACNIC address blocks:     762
LACNIC Region origin ASes present in the Internet Routing Table:    169
    LACNIC Prefixes per ASN:                                       8.48
LACNIC Region origin ASes announcing only one prefix:                63
LACNIC Region transit ASes present in the Internet Routing Table:    27
Average LACNIC Region AS path length visible:                       5.7
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    70
Number of LACNIC addresses announced to Internet:               4154624
    Equivalent to 0 /8s, 63 /16s and 101 /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:                   1325
    Total AfriNIC prefixes after maximum aggregation:               178
    AfriNIC Deaggregation factor:                                  7.44
Prefixes being announced from the AfriNIC address blocks:          1325
    Unique aggregates announced from the AfriNIC address blocks:    229
AfriNIC Region origin ASes present in the Internet Routing Table:    50
    AfriNIC Prefixes per ASN:                                     26.50
AfriNIC Region origin ASes announcing only one prefix:               25
AfriNIC Region transit ASes present in the Internet Routing Table:    8
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                        8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   28
Number of AfriNIC addresses announced to Internet:              2653696
    Equivalent to 0 /8s, 40 /16s and 126 /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         591       2146     464  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         18      16  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/Janet/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   668         204        652     173  DNIC-AS-00668, US
   376         201        162     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  2152         145        507      94  CSUNET-NW, US
 18558         141         18       4  NETBLK-RCOEK, US
    81         126        521      30  NCREN, US
   270         118        329      82  AS270, US
 23024         109          7      22  OCDE, US
  2920         102         34       7  LACOE, US
393337          82         16       1  UOFHARTFORD, US

Complete listing at https://bgp.nsrc.org/REN/Janet/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         184       1764     179  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          60        550      55  FR-RENATER Reseau National de telecommu

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         210        176      42  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
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  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
  1251          35         32      25  FUNDACAO DE AMPARO A PESQUISA DO ESTADO

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         509         82       3  KENET-AS, KE
  2018         380        319      71  TENET-1, ZA
327687         160         28       3  RENU, UG
  8094          47         48      18  PUKNET, ZA
327700          45         16       1  MoRENet, MZ
  3208          32          2       1  ARN, DZ
  6879          24          2       9  ENSTINET-, EG
 37074          14          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA
 37654          11          1       6  RwEdNet-AS, RW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         591       2146     464  SINET-AS Research Organization of Infor
 36914         509         82       3  KENET-AS, KE
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  2018         380        319      71  TENET-1, ZA
   680         283       1899     249  DFN Verein zur Foerderung eines Deutsch
  1916         210        176      42  Rede Nacional de Ensino e Pesquisa, BR
   668         204        652     173  DNIC-AS-00668, US
   376         201        162     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  1237         193         74     142  KREONET-AS-KR KISTI, KR

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

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

   ASN  No of nets  Net Savings  Description
 36914         509          506  KENET-AS, KE
  7497         437          414  CSTNET-AS-AP Computer Network Information Cente
  2018         380          309  TENET-1, ZA
  5786         197          196  UPRENET, PR
 58647         180          178  KAGAWAU-AS Kagawa University, JP
  1916         210          168  Rede Nacional de Ensino e Pesquisa, BR
327687         160          157  RENU, UG
 18558         141          137  NETBLK-RCOEK, US
  8895         131          126  ISU Internet Services Unit ISU, SA
 55824         126          110  NKN-CORE-NW NKN Core Network, IN

Complete listing at https://bgp.nsrc.org/REN/Janet/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/Janet/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/Janet/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       /11:1       /12:10      
/13:19      /14:35      /15:121     /16:2010    /17:426     /18:443     
/19:566     /20:826     /21:839     /22:1453    /23:1477    /24:10318   
/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
 36914         494         509  KENET-AS, KE
  8895         126         131  ISU Internet Services Unit ISU, SA
 23024          52         109  OCDE, US
327700          39          45  MoRENet, MZ
 32440          38          62  LONI, US
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
200521          31          53  SEAP-AGE, ES
 25977          30          44  HCCS, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US

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

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

   1:2         5:7         6:4         8:2        12:1        14:89     
  23:5        24:3        31:7        35:6        38:8        40:1      
  41:220      42:13       44:7        45:37       46:5        47:1      
  49:9        50:1        52:1        58:11       59:20       60:5      
  61:3        62:6        63:32       64:48       65:1        66:39     
  67:41       68:10       69:17       70:2        71:1        72:7      
  74:51       76:41       77:8        78:3        79:10       80:5      
  81:26       82:4        83:6        84:9        85:26       86:3      
  87:1        89:10       91:43       93:4        94:4        95:2      
  96:5        97:1        98:2       101:5       102:37      103:265    
 104:73      108:8       109:7       111:16      114:23      116:8      
 117:61      118:33      119:18      121:29      122:8       123:8      
 124:40      125:3       128:84      129:40      130:83      131:65     
 132:59      133:155     134:109     136:196     137:177     138:9      
 139:5       140:41      141:3       142:38      143:23      144:25     
 145:2       146:133     147:56      148:193     149:12      150:44     
 151:11      152:132     153:14      154:30      155:63      156:66     
 157:18      158:30      159:115     160:29      161:15      162:20     
 163:81      164:13      165:47      166:1       167:13      168:119    
 169:7       170:86      172:3       173:7       175:18      176:8      
 177:6       179:12      180:15      181:1       182:1       184:2      
 185:50      186:3       187:17      188:12      189:3       190:18     
 191:13      192:1449    193:287     194:120     195:70      196:200    
 197:316     198:464     199:276     200:322     201:37      202:621    
 203:422     204:351     205:128     206:187     207:146     208:72     
 209:113     210:193     211:15      212:158     213:2       214:8      
 216:82      217:9       218:3       219:6       220:15      222:3      
 223:14     

End of report


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