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

REN Routing Table Report cscora at bgp.nsrc.org
Wed Sep 13 18:45:38 UTC 2023


IPv4 R&E Routing Table Report   18:45 GMT Wed 13 Sep, 2023

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

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

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

BGP routing table entries examined:                               15876
    Prefixes after maximum aggregation (per Origin AS):            8283
    Deaggregation factor:                                          1.92
    Unique aggregates announced (without unneeded subnets):        9406
    Number of IPv4 prefixes with a valid ROA:                      3702
    Number of IPv4 prefixes with an invalid ROA:                     23
    Number of IPv4 prefixes with no ROA:                          12151
Total ASes present in the Internet Routing Table:                  2238
    Prefixes per ASN:                                              7.09
Origin-only ASes present in the Internet Routing Table:            1937
Origin ASes announcing only one prefix:                             817
Transit ASes present in the Internet Routing Table:                 301
Transit-only ASes present in the Internet Routing Table:             59
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      15
    Max AS path prepend of ASN (395156)                              12
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:                      42599
Number of 32-bit ASNs visible in the Routing Table:                 502
Prefixes from 32-bit ASNs in the Routing Table:                    1650
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:              3
Number of addresses announced to Internet:                    160286208
    Equivalent to 9 /8s, 141 /16s and 198 /24s
    Percentage of available address space announced:                4.3
    Percentage of allocated address space announced:                4.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:        1628

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

Prefixes being announced by APNIC Region ASes:                     4620
    Total APNIC prefixes after maximum aggregation:                2279
    APNIC Deaggregation factor:                                    2.03
Prefixes being announced from the APNIC address blocks:            4619
    Unique aggregates announced from the APNIC address blocks:     2604
APNIC Region origin ASes present in the Internet Routing Table:     542
    APNIC Prefixes per ASN:                                        8.52
APNIC Region origin ASes announcing only one prefix:                228
APNIC Region transit ASes present in the Internet Routing Table:     58
Average APNIC Region AS path length visible:                        5.0
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    205
Number of APNIC addresses announced to Internet:               45632512
    Equivalent to 2 /8s, 184 /16s and 76 /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:                      7795
    Total ARIN prefixes after maximum aggregation:                 4642
    ARIN Deaggregation factor:                                     1.68
Prefixes being announced from the ARIN address blocks:             7803
    Unique aggregates announced from the ARIN address blocks:      5142
ARIN Region origin ASes present in the Internet Routing Table:     1227
    ARIN Prefixes per ASN:                                         6.36
ARIN Region origin ASes announcing only one prefix:                 429
ARIN Region transit ASes present in the Internet Routing Table:     159
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     190
Number of ARIN addresses announced to Internet:                94912512
    Equivalent to 5 /8s, 168 /16s and 64 /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:                       942
    Total RIPE prefixes after maximum aggregation:                  629
    RIPE Deaggregation factor:                                     1.50
Prefixes being announced from the RIPE address blocks:              937
    Unique aggregates announced from the RIPE address blocks:       672
RIPE Region origin ASes present in the Internet Routing Table:      214
    RIPE Prefixes per ASN:                                         4.38
RIPE Region origin ASes announcing only one prefix:                  89
RIPE Region transit ASes present in the Internet Routing Table:      34
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          13
Number of RIPE region 32-bit ASNs visible in the Routing Table:      27
Number of RIPE addresses announced to Internet:                12993280
    Equivalent to 0 /8s, 198 /16s and 67 /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:                    1484
    Total LACNIC prefixes after maximum aggregation:                584
    LACNIC Deaggregation factor:                                   2.54
Prefixes being announced from the LACNIC address blocks:           1482
    Unique aggregates announced from the LACNIC address blocks:     792
LACNIC Region origin ASes present in the Internet Routing Table:    168
    LACNIC Prefixes per ASN:                                       8.82
LACNIC Region origin ASes announcing only one prefix:                62
LACNIC Region transit ASes present in the Internet Routing Table:    27
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    70
Number of LACNIC addresses announced to Internet:               4239616
    Equivalent to 0 /8s, 64 /16s and 177 /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:                   1032
    Total AfriNIC prefixes after maximum aggregation:               146
    AfriNIC Deaggregation factor:                                  7.07
Prefixes being announced from the AfriNIC address blocks:          1032
    Unique aggregates announced from the AfriNIC address blocks:    193
AfriNIC Region origin ASes present in the Internet Routing Table:    26
    AfriNIC Prefixes per ASN:                                     39.69
AfriNIC Region origin ASes announcing only one prefix:                9
AfriNIC Region transit ASes present in the Internet Routing Table:    6
Average AfriNIC Region AS path length visible:                      2.8
    Max AfriNIC Region AS path length visible:                        6
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   10
Number of AfriNIC addresses announced to Internet:              2442240
    Equivalent to 0 /8s, 37 /16s and 68 /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       2163     465  SINET-AS Research Organization of Infor
  7497         435        180      23  CSTNET-AS-AP Computer Network Informati
  1237         192         74     141  KREONET-AS-KR KISTI, KR
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
 58647         177         18       2  KAGAWAU-AS Kagawa University, JP
  4538         130       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         126         18      17  NKN-CORE-NW NKN Core Network, IN
  4621          70         37      10  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T
  4762          63          4       1  MAHIDOL-BORDER-AS Mahidol University, T

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   668         203        651     172  DNIC-AS-00668, US
   376         201        178     150  RISQ-AS, CA
  5786         196         16       1  UPRENET, PR
  2152         140        507      92  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
    81         127        521      30  NCREN, US
   270         118        329      82  AS270, US
 23024         113          7      17  OCDE, US
  2920         107         34       7  LACOE, US
 21976          82         51      18  NJEDGE-NET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8895         136         24       5  ISU Internet Services Unit ISU, SA
  1103          94       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  1653          50        151      47  SUNET SUNET Swedish University Network,
  1741          39        149      18  FUNETAS, FI
  3267          33         27      23  RUNNET, RU
  5495          24          7       8  ASN-SPBGU St.Petersburg, Russia, RU
  3218          21          4      18  COSMOS-3218-AS AS-COSMOS root, RU
  8674          17          2      11  NETNOD-IX Netnod AB, SE
   224          13        256      13  UNINETT UNINETT, The Norwegian Universi
  1101          12        465      12  IP-EEND-AS IP-EEND BV, NL

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         221        176      42  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         104         24      48  Red Universitaria Nacional, CL
271640          72          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  2715          59        102      39  Fundacao Carlos Chagas Filho de Amparo 
  4270          48         16       1  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
 61468          43          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
  3596          34          4       3  Universidad Autonoma Metropolitana, MX

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         379        319      71  TENET-1, ZA
 36914         305         82       3  KENET-AS, KE
327687         166         28       3  RENU, UG
  8094          47         48      18  PUKNET, ZA
327700          41         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37501          11         49       6  UOFS, ZA
 37654          10          1       6  RwEdNet-AS, RW
 36982           8         33       8  UCT, ZA
 37215           7          8       1  MAREN, MW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         593       2163     465  SINET-AS Research Organization of Infor
  7497         435        180      23  CSTNET-AS-AP Computer Network Informati
  2018         379        319      71  TENET-1, ZA
 36914         305         82       3  KENET-AS, KE
  1916         221        176      42  Rede Nacional de Ensino e Pesquisa, BR
   668         203        651     172  DNIC-AS-00668, US
   376         201        178     150  RISQ-AS, CA
  5786         196         16       1  UPRENET, PR
  1237         192         74     141  KREONET-AS-KR KISTI, KR
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re

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

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

   ASN  No of nets  Net Savings  Description
  7497         435          412  CSTNET-AS-AP Computer Network Information Cente
  2018         379          308  TENET-1, ZA
 36914         305          302  KENET-AS, KE
  5786         196          195  UPRENET, PR
  1916         221          179  Rede Nacional de Ensino e Pesquisa, BR
 58647         177          175  KAGAWAU-AS Kagawa University, JP
327687         166          163  RENU, UG
 18558         136          132  NETBLK-RCOEK, US
  8895         136          131  ISU Internet Services Unit ISU, SA
 55824         126          109  NKN-CORE-NW NKN Core Network, IN

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

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
134.208.0.0/16       Origin:     17711  NDHU-TW National Dong Hwa University, TW
134.208.0.0/16      Transit:      7539  TWAREN-TW National Center for High-perfo
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
202.58.231.0/24      Origin:    134096  EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24     Transit:      7575  AARNET-AS-AP Australian Academic and Res

Complete listing at https://bgp.nsrc.org/REN/TENET/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       /12:9       
/13:17      /14:30      /15:88      /16:1478    /17:356     /18:374     
/19:468     /20:733     /21:683     /22:1196    /23:1274    /24:9166    
/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         293         305  KENET-AS, KE
  8895         131         136  ISU Internet Services Unit ISU, SA
 23024          52         113  OCDE, US
 32440          37          59  LONI, US
327700          35          41  MoRENet, MZ
 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/TENET/data-sXXas-nos

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

   1:2         4:2         6:4         8:2        12:1        14:89     
  23:7        24:3        35:4        38:9        40:1        41:116    
  42:10       44:3        45:39       47:1        49:9        50:1      
  52:1        58:1        59:19       60:4        61:3        62:6      
  63:33       64:51       65:1        66:37       67:41       68:9      
  69:19       70:2        71:1        72:7        74:44       76:40     
  77:6        80:4        81:1        82:4        84:4        85:15     
  86:10       87:1        89:2        91:17       92:2        93:1      
  96:5        97:1        98:2       101:2       102:26      103:267    
 104:76      108:10      109:6       111:16      114:23      116:6      
 117:61      118:32      119:18      121:28      122:8       123:8      
 124:40      125:4       128:84      129:35      130:87      131:54     
 132:60      133:152     134:102     136:195     137:123     138:9      
 139:5       140:40      141:1       142:38      143:20      144:23     
 146:130     147:53      148:186     149:12      150:44      151:11     
 152:147     153:2       154:28      155:63      156:66      157:18     
 158:33      159:114     160:29      161:24      162:23      163:85     
 164:10      165:46      166:1       167:13      168:123     169:8      
 170:77      171:1       172:3       173:6       175:26      176:8      
 177:5       179:12      180:15      181:1       182:1       184:8      
 185:22      186:3       187:18      188:3       189:3       190:20     
 191:13      192:1049    193:39      194:58      195:46      196:201    
 197:214     198:476     199:276     200:341     201:39      202:628    
 203:426     204:352     205:128     206:188     207:166     208:70     
 209:112     210:191     211:14      212:127     213:3       214:8      
 216:84      217:1       218:22      219:5       220:16      222:2      
 223:14     

End of report


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