[REN-BGP-stats-all] Global R&E Routing Table Report - ASREN view

REN Routing Table Report cscora at frr.nsrc.org
Sat Nov 20 17:05:29 UTC 2021


Global R&E Routing Table Report   17:05 GMT Sat 20 Nov, 2021

  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:                               14275
    Prefixes after maximum aggregation (per Origin AS):            8242
    Deaggregation factor:                                          1.73
    Unique aggregates announced (without unneeded subnets):        9086
Total ASes present in the Internet Routing Table:                  2142
    Prefixes per ASN:                                              6.66
Origin-only ASes present in the Internet Routing Table:            1844
Origin ASes announcing only one prefix:                             875
Transit ASes present in the Internet Routing Table:                 298
Transit-only ASes present in the Internet Routing Table:             32
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN (  5474)                              11
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      37875
Number of 32-bit ASNs visible in the Routing Table:                 488
Prefixes from 32-bit ASNs in the Routing Table:                    1384
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:              0
Number of addresses announced to Internet:                    176146624
    Equivalent to 10 /8s, 127 /16s and 200 /24s
    Percentage of available address space announced:                4.8
    Percentage of allocated address space announced:                4.8
    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:        1613

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

Prefixes being announced by APNIC Region ASes:                     3908
    Total APNIC prefixes after maximum aggregation:                2052
    APNIC Deaggregation factor:                                    1.90
Prefixes being announced from the APNIC address blocks:            3910
    Unique aggregates announced from the APNIC address blocks:     2265
APNIC Region origin ASes present in the Internet Routing Table:     460
    APNIC Prefixes per ASN:                                        8.50
APNIC Region origin ASes announcing only one prefix:                193
APNIC Region transit ASes present in the Internet Routing Table:     48
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    175
Number of APNIC addresses announced to Internet:               44670784
    Equivalent to 2 /8s, 169 /16s and 159 /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, 131072-151865
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:                      5307
    Total ARIN prefixes after maximum aggregation:                 3137
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5318
    Unique aggregates announced from the ARIN address blocks:      3525
ARIN Region origin ASes present in the Internet Routing Table:      849
    ARIN Prefixes per ASN:                                         6.26
ARIN Region origin ASes announcing only one prefix:                 307
ARIN Region transit ASes present in the Internet Routing Table:     114
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          13
Number of ARIN region 32-bit ASNs visible in the Routing Table:     110
Number of ARIN addresses announced to Internet:                70160384
    Equivalent to 4 /8s, 46 /16s and 144 /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:                      3097
    Total RIPE prefixes after maximum aggregation:                 2468
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3090
    Unique aggregates announced from the RIPE address blocks:      2568
RIPE Region origin ASes present in the Internet Routing Table:      604
    RIPE Prefixes per ASN:                                         5.12
RIPE Region origin ASes announcing only one prefix:                 295
RIPE Region transit ASes present in the Internet Routing Table:      96
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:     119
Number of RIPE addresses announced to Internet:                55663840
    Equivalent to 3 /8s, 81 /16s and 92 /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
                       196608-213403
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:                    1044
    Total LACNIC prefixes after maximum aggregation:                421
    LACNIC Deaggregation factor:                                   2.48
Prefixes being announced from the LACNIC address blocks:           1042
    Unique aggregates announced from the LACNIC address blocks:     500
LACNIC Region origin ASes present in the Internet Routing Table:    145
    LACNIC Prefixes per ASN:                                       7.19
LACNIC Region origin ASes announcing only one prefix:                58
LACNIC Region transit ASes present in the Internet Routing Table:    22
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:    59
Number of LACNIC addresses announced to Internet:               2996128
    Equivalent to 0 /8s, 45 /16s and 183 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + 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:                    915
    Total AfriNIC prefixes after maximum aggregation:               160
    AfriNIC Deaggregation factor:                                  5.72
Prefixes being announced from the AfriNIC address blocks:           915
    Unique aggregates announced from the AfriNIC address blocks:    228
AfriNIC Region origin ASes present in the Internet Routing Table:    49
    AfriNIC Prefixes per ASN:                                     18.67
AfriNIC Region origin ASes announcing only one prefix:               22
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   25
Number of AfriNIC addresses announced to Internet:              2655488
    Equivalent to 0 /8s, 40 /16s and 133 /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         619       2156     457  SINET-AS Research Organization of Infor
  7497         423        177      19  CSTNET-AS-AP Computer Network Informati
  1237         188         74     135  KREONET-AS-KR KISTI, KR
  7575         176        329     122  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         172       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         128         19      22  NKN-CORE-NW NKN Core Network, IN
  2697          54          3      32  ERX-ERNET-AS Education and Research Net
  1659          51       1434      33  ERX-TANET-ASN1 Taiwan Academic Network 
  9317          49         16       1  ITISNET-AS INHA UNIVERSITY, KR

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         194         16       1  UPRENET, PR
  2152         157        507      85  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
   270         119        329      88  AS270, US
  2920         112         34       6  LACOE, US
   376          86          7      63  RISQ-AS, CA
 21976          85         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US
 22742          68         53      34  CT-EDU-NET, US
  3477          67         71      40  NOAA-NWAVE, 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         277       1998     237  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         177         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          97       1520      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          81        676      76  ASGARR Consortium GARR, IT
  2200          67        647      61  FR-RENATER Reseau National de telecommu
  2614          59         33      57  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol
  1653          51        165      48  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         188        178      36  Associacao Rede Nacional de Ensino e Pe
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
 19611          45         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          43         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
 20191          31         16       1  Pontificia Universidad Catolica de Chil
 28571          28         19      18  UNIVERSIDADE DE SAO PAULO, BR
271640          27          8       1  UNIVERSIDADE FEDERAL DE VICOSA, 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
  2018         341        319      71  TENET-1, ZA
 36914         198         82       3  KENET-AS, KE
327687         118         28       3  RENU, UG
  8094          50         48       4  PUKNET, ZA
327700          42         16       1  MoRENet, MZ
 37215          33          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37182          11          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA

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         619       2156     457  SINET-AS Research Organization of Infor
  7497         423        177      19  CSTNET-AS-AP Computer Network Informati
  2018         341        319      71  TENET-1, ZA
   680         277       1998     237  DFN Verein zur Foerderung eines Deutsch
 36914         198         82       3  KENET-AS, KE
  5786         194         16       1  UPRENET, PR
  1237         188         74     135  KREONET-AS-KR KISTI, KR
  1916         188        178      36  Associacao Rede Nacional de Ensino e Pe
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         177         24       4  ISU Internet Services Unit ISU, SA

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         423          404  CSTNET-AS-AP Computer Network Information Cente
  2018         341          270  TENET-1, ZA
 36914         198          195  KENET-AS, KE
  5786         194          193  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         177          173  ISU Internet Services Unit ISU, SA
  1916         188          152  Associacao Rede Nacional de Ensino e Pesquisa, 
 18558         136          132  NETBLK-RCOEK, US
327687         118          115  RENU, UG
 55824         128          106  NKN-CORE-NW NKN Core Network, IN

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
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     29955  UNALLOCATED  192.104.1.0/24            2495  KANREN, US
     29955  UNALLOCATED  198.252.8.0/21            2495  KANREN, US
     19658  UNALLOCATED  199.27.241.0/24          11096  FLORIDANET, US

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

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      /15:107     /16:1668    /17:285     /18:300     
/19:427     /20:652     /21:722     /22:1111    /23:1202    /24:7545    
/25:73      /26:61      /27:54      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         184         198  KENET-AS, KE
  8895         172         177  ISU Internet Services Unit ISU, SA
 23024          53          56  OCDE, US
327700          36          42  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 25977          29          32  HCCS, US
200521          29          48  SEAP-AGE, ES
  1916          27         188  Associacao Rede Nacional de Ensino e Pesquisa, 
 37215          27          33  MAREN, MW
 30220          25          25  SWTELCOOP, US

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

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

   1:2         5:15        8:2        12:1        14:84       23:2      
  24:3        31:1        37:6        38:3        41:147      42:9      
  44:4        45:35       46:6        49:10       58:4        59:11     
  60:4        61:3        62:6        63:4        64:11       66:23     
  67:34       68:1        69:17       72:10       74:16       76:2      
  77:6        78:3        79:10       80:10       81:26       82:2      
  83:7        84:3        85:22       86:6        87:1        88:1      
  89:10       91:45       93:18       94:2        95:4        96:5      
 101:5       102:15      103:228     104:6       106:1       108:4      
 109:9       110:3       111:16      112:4       114:18      116:5      
 117:2       118:17      119:21      121:27      122:8       123:8      
 124:39      125:1       128:66      129:32      130:84      131:79     
 132:49      133:138     134:89      136:185     137:99      138:8      
 139:4       140:32      141:2       142:23      143:28      144:25     
 145:1       146:122     147:24      148:7       149:13      150:19     
 151:2       152:25      153:6       154:24      155:45      156:67     
 157:25      158:39      159:116     160:25      161:15      162:10     
 163:60      164:37      165:53      166:1       167:11      168:100    
 169:8       170:41      172:2       173:2       175:30      176:8      
 177:6       178:1       179:10      180:21      182:6       184:3      
 185:32      186:3       187:17      188:13      189:3       190:43     
 191:6       192:1153    193:180     194:101     195:59      196:166    
 197:104     198:326     199:179     200:221     201:38      202:368    
 203:279     204:273     205:113     206:130     207:128     208:43     
 209:94      210:177     211:2       212:171     213:2       216:50     
 217:13      218:5       219:13      220:12      222:4       223:2      


End of report


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