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

REN Routing Table Report cscora at frr.nsrc.org
Wed Dec 1 17:05:29 UTC 2021


Global R&E Routing Table Report   17:05 GMT Wed 01 Dec, 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:                               14301
    Prefixes after maximum aggregation (per Origin AS):            8328
    Deaggregation factor:                                          1.72
    Unique aggregates announced (without unneeded subnets):        9169
Total ASes present in the Internet Routing Table:                  2172
    Prefixes per ASN:                                              6.58
Origin-only ASes present in the Internet Routing Table:            1868
Origin ASes announcing only one prefix:                             884
Transit ASes present in the Internet Routing Table:                 304
Transit-only ASes present in the Internet Routing Table:             36
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:                      37954
Number of 32-bit ASNs visible in the Routing Table:                 489
Prefixes from 32-bit ASNs in the Routing Table:                    1313
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:                    176497920
    Equivalent to 10 /8s, 133 /16s and 37 /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:        1618

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

Prefixes being announced by APNIC Region ASes:                     3883
    Total APNIC prefixes after maximum aggregation:                2044
    APNIC Deaggregation factor:                                    1.90
Prefixes being announced from the APNIC address blocks:            3885
    Unique aggregates announced from the APNIC address blocks:     2241
APNIC Region origin ASes present in the Internet Routing Table:     455
    APNIC Prefixes per ASN:                                        8.54
APNIC Region origin ASes announcing only one prefix:                195
APNIC Region transit ASes present in the Internet Routing Table:     48
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    170
Number of APNIC addresses announced to Internet:               44603200
    Equivalent to 2 /8s, 168 /16s and 151 /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:                      5421
    Total ARIN prefixes after maximum aggregation:                 3206
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5432
    Unique aggregates announced from the ARIN address blocks:      3613
ARIN Region origin ASes present in the Internet Routing Table:      871
    ARIN Prefixes per ASN:                                         6.24
ARIN Region origin ASes announcing only one prefix:                 311
ARIN Region transit ASes present in the Internet Routing Table:     116
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:     114
Number of ARIN addresses announced to Internet:                70422272
    Equivalent to 4 /8s, 50 /16s and 143 /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:                      3107
    Total RIPE prefixes after maximum aggregation:                 2489
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3100
    Unique aggregates announced from the RIPE address blocks:      2580
RIPE Region origin ASes present in the Internet Routing Table:      612
    RIPE Prefixes per ASN:                                         5.07
RIPE Region origin ASes announcing only one prefix:                 299
RIPE Region transit ASes present in the Internet Routing Table:     101
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:     120
Number of RIPE addresses announced to Internet:                55686880
    Equivalent to 3 /8s, 81 /16s and 182 /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:                    1057
    Total LACNIC prefixes after maximum aggregation:                424
    LACNIC Deaggregation factor:                                   2.49
Prefixes being announced from the LACNIC address blocks:           1055
    Unique aggregates announced from the LACNIC address blocks:     506
LACNIC Region origin ASes present in the Internet Routing Table:    147
    LACNIC Prefixes per ASN:                                       7.18
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:    61
Number of LACNIC addresses announced to Internet:               3085280
    Equivalent to 0 /8s, 47 /16s and 19 /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:                    829
    Total AfriNIC prefixes after maximum aggregation:               161
    AfriNIC Deaggregation factor:                                  5.15
Prefixes being announced from the AfriNIC address blocks:           829
    Unique aggregates announced from the AfriNIC address blocks:    229
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     17.27
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.2
    Max AfriNIC Region AS path length visible:                        8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   24
Number of AfriNIC addresses announced to Internet:              2700288
    Equivalent to 0 /8s, 41 /16s and 52 /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         622       2156     457  SINET-AS Research Organization of Infor
  7497         424        177      19  CSTNET-AS-AP Computer Network Informati
  1237         188         74     135  KREONET-AS-KR KISTI, KR
  7575         177        330     123  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         174       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         195         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         111         10      80  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          65         71      38  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         278       1998     238  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         176         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          82        677      77  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          52        167      49  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         183        178      36  Rede Nacional de Ensino e Pesquisa, BR
 11340          95         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          30         21      19  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         345        319      71  TENET-1, ZA
 36914         207         82       3  KENET-AS, KE
  8094          50         48       4  PUKNET, ZA
327700          42         16       1  MoRENet, MZ
327687          38         28       3  RENU, UG
  6879          24          2       9  ENSTINET-, EG
 37182          13          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 37074          10          7       7  UG-AS, GH
 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         622       2156     457  SINET-AS Research Organization of Infor
  7497         424        177      19  CSTNET-AS-AP Computer Network Informati
  2018         345        319      71  TENET-1, ZA
   680         278       1998     238  DFN Verein zur Foerderung eines Deutsch
 36914         207         82       3  KENET-AS, KE
  5786         195         16       1  UPRENET, PR
  1237         188         74     135  KREONET-AS-KR KISTI, KR
   786         186       1774     183  JANET Jisc Services Limited, GB
  1916         183        178      36  Rede Nacional de Ensino e Pesquisa, BR
  7575         177        330     123  AARNET-AS-AP Australian Academic and Re

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         424          405  CSTNET-AS-AP Computer Network Information Cente
  2018         345          274  TENET-1, ZA
 36914         207          204  KENET-AS, KE
  5786         195          194  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         176          172  ISU Internet Services Unit ISU, SA
  1916         183          147  Rede Nacional de Ensino e Pesquisa, BR
 18558         136          132  NETBLK-RCOEK, US
 55824         128          106  NKN-CORE-NW NKN Core Network, IN
  2920         112          106  LACOE, 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
     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     /16:1670    /17:292     /18:302     
/19:448     /20:668     /21:728     /22:1115    /23:1206    /24:7509    
/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         193         207  KENET-AS, KE
  8895         171         176  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          28          47  SEAP-AGE, ES
  1916          27         183  Rede Nacional de Ensino e Pesquisa, BR
 30220          25          25  SWTELCOOP, US
 31638          21          21  ASN-LEPIDA, IT

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      
  24:6        31:1        37:6        38:3        41:125      42:9      
  44:4        45:30       46:6        49:10       58:4        59:10     
  60:4        61:2        62:6        63:4        64:12       66:24     
  67:34       68:1        69:17       71:1        72:10       74:16     
  76:3        77:6        78:3        79:10       80:10       81:26     
  82:2        83:7        84:3        85:23       86:7        87:1      
  88:1        89:10       91:45       93:18       94:2        95:5      
  96:5       101:4       102:12      103:220     104:6       106:1      
 108:4       109:9       110:3       111:16      112:4       114:14     
 116:5       117:2       118:17      119:21      121:27      122:8      
 123:8       124:39      125:1       128:67      129:30      130:84     
 131:79      132:51      133:138     134:88      136:186     137:46     
 138:8       139:4       140:34      141:2       142:22      143:31     
 144:25      145:1       146:123     147:24      148:7       149:13     
 150:19      151:2       152:22      153:6       154:24      155:46     
 156:67      157:25      158:39      159:116     160:25      161:15     
 162:15      163:56      164:40      165:53      166:1       167:11     
 168:98      169:8       170:44      172:2       173:2       175:21     
 176:8       177:5       178:1       179:9       180:21      182:6      
 184:3       185:35      186:3       187:17      188:13      189:3      
 190:47      191:6       192:1174    193:182     194:102     195:58     
 196:150     197:114     198:338     199:181     200:216     201:38     
 202:366     203:279     204:276     205:123     206:135     207:130    
 208:43      209:94      210:178     211:2       212:171     213:3      
 216:50      217:13      218:5       219:13      220:12      222:5      
 223:2      

End of report


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