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

REN Routing Table Report cscora at frr.nsrc.org
Tue May 4 17:15:11 UTC 2021


Global R&E Routing Table Report   17:15 GMT Tue 04 May, 2021

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

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

BGP routing table entries examined:                               14139
    Prefixes after maximum aggregation (per Origin AS):            8132
    Deaggregation factor:                                          1.74
    Unique aggregates announced (without unneeded subnets):        9182
Total ASes present in the Internet Routing Table:                  2059
    Prefixes per ASN:                                              6.87
Origin-only ASes present in the Internet Routing Table:            1770
Origin ASes announcing only one prefix:                             852
Transit ASes present in the Internet Routing Table:                 289
Transit-only ASes present in the Internet Routing Table:             40
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      17
    Max AS path prepend of ASN (  5474)                              11
Prefixes from unregistered ASNs in the Routing Table:                 1
    Number of instances of unregistered ASNs:                         1
Number of 32-bit ASNs allocated by the RIRs:                      35914
Number of 32-bit ASNs visible in the Routing Table:                 430
Prefixes from 32-bit ASNs in the Routing Table:                    1306
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:                    171897664
    Equivalent to 10 /8s, 62 /16s and 243 /24s
    Percentage of available address space announced:                4.6
    Percentage of allocated address space announced:                4.6
    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:        1672

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

Prefixes being announced by APNIC Region ASes:                     3938
    Total APNIC prefixes after maximum aggregation:                2079
    APNIC Deaggregation factor:                                    1.89
Prefixes being announced from the APNIC address blocks:            3940
    Unique aggregates announced from the APNIC address blocks:     2332
APNIC Region origin ASes present in the Internet Routing Table:     454
    APNIC Prefixes per ASN:                                        8.68
APNIC Region origin ASes announcing only one prefix:                202
APNIC Region transit ASes present in the Internet Routing Table:     46
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    161
Number of APNIC addresses announced to Internet:               45018176
    Equivalent to 2 /8s, 174 /16s and 236 /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, 131072-143673
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:                      5374
    Total ARIN prefixes after maximum aggregation:                 3126
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:             5380
    Unique aggregates announced from the ARIN address blocks:      3620
ARIN Region origin ASes present in the Internet Routing Table:      842
    ARIN Prefixes per ASN:                                         6.39
ARIN Region origin ASes announcing only one prefix:                 306
ARIN Region transit ASes present in the Internet Routing Table:     112
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     104
Number of ARIN addresses announced to Internet:                67197664
    Equivalent to 4 /8s, 1 /16s and 90 /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:                      3051
    Total RIPE prefixes after maximum aggregation:                 2453
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3045
    Unique aggregates announced from the RIPE address blocks:      2552
RIPE Region origin ASes present in the Internet Routing Table:      603
    RIPE Prefixes per ASN:                                         5.05
RIPE Region origin ASes announcing only one prefix:                 288
RIPE Region transit ASes present in the Internet Routing Table:      97
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:     112
Number of RIPE addresses announced to Internet:                55711392
    Equivalent to 3 /8s, 82 /16s and 22 /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:                     536
    Total LACNIC prefixes after maximum aggregation:                275
    LACNIC Deaggregation factor:                                   1.95
Prefixes being announced from the LACNIC address blocks:            535
    Unique aggregates announced from the LACNIC address blocks:     363
LACNIC Region origin ASes present in the Internet Routing Table:     72
    LACNIC Prefixes per ASN:                                       7.43
LACNIC Region origin ASes announcing only one prefix:                34
LACNIC Region transit ASes present in the Internet Routing Table:    18
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    29
Number of LACNIC addresses announced to Internet:               1354368
    Equivalent to 0 /8s, 20 /16s and 170 /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:                   1239
    Total AfriNIC prefixes after maximum aggregation:               198
    AfriNIC Deaggregation factor:                                  6.26
Prefixes being announced from the AfriNIC address blocks:          1239
    Unique aggregates announced from the AfriNIC address blocks:    315
AfriNIC Region origin ASes present in the Internet Routing Table:    47
    AfriNIC Prefixes per ASN:                                     26.36
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:                      4.9
    Max AfriNIC Region AS path length visible:                        7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   24
Number of AfriNIC addresses announced to Internet:              2616064
    Equivalent to 0 /8s, 39 /16s and 235 /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         609       2155     447  SINET-AS Research Organization of Infor
  7497         423        210      22  CSTNET-AS-AP Computer Network Informati
  1237         189         75     139  KREONET-AS-KR KISTI, KR
  7575         187        331     133  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         163       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         127         18      21  NKN-CORE-NW NKN Core Network, IN
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
  1659          55       1450      34  ERX-TANET-ASN1 Taiwan Academic Network 
  2697          54          3      32  ERX-ERNET-AS Education and Research Net

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
   376         226        180     149  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  2152         160        507      92  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
  2920         112         34       6  LACOE, US
 21976          86         51      18  NJEDGE-NET, US
 22742          84         61      45  CT-EDU-NET, US
  1736          80         16       1  MU-AS, US
 15296          65          5      54  CYBERA, CA
  3477          59         54      35  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         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   786         187       1787     185  JANET Jisc Services Limited, GB
  8895         172         24       4  ISU Internet Services Unit (ISU), SA
   559         116        550     107  SWITCH Peering requests: (peering at switc
  1103          95       1520      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          67        647      62  FR-RENATER Reseau National de telecommu
  2614          62         32      59  ROEDUNET, RO
  1930          56         82      51  RCCN Fundacao para a Ciencia e a Tecnol
  1653          49        151      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
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          67         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          48         53      31  Fundacao Carlos Chagas Filho de Amparo 
 61468          41          3      15  CEDIA, EC
  1916          39         23      27  Associacao Rede Nacional de Ensino e Pe
 20191          31         16       1  Pontificia Universidad Catolica de Chil
 28571          31         10      19  UNIVERSIDADE DE SAO PAULO, BR
 28027          18          2       5  Escuela Superior Politecnica del Litora
 52888          16          7       9  UNIVERSIDADE FEDERAL DE SAO CARLOS, BR
   278          11         16       3  Universidad Nacional Autonoma de Mexico

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
 36914         409         82       3  KENET-AS, KE
  2018         322        319      72  TENET-1, ZA
327687         134         28       3  RENU, UG
327700          83         16       1  MoRENet, MZ
  2561          74          5      34  EUN, EG
  8094          55         48       4  PUKNET, ZA
 37215          29          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37182          20          1      15  TERNET, TZ
 37074          11          8       2  UG-AS, GH

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         609       2155     447  SINET-AS Research Organization of Infor
  7497         423        210      22  CSTNET-AS-AP Computer Network Informati
 36914         409         82       3  KENET-AS, KE
  2018         322        319      72  TENET-1, ZA
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
   376         226        180     149  RISQ-AS, CA
  5786         201         16       1  UPRENET, PR
  1237         189         75     139  KREONET-AS-KR KISTI, KR
   786         187       1787     185  JANET Jisc Services Limited, GB
  7575         187        331     133  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
 36914         409          406  KENET-AS, KE
  7497         423          401  CSTNET-AS-AP Computer Network Information Cente
  2018         322          250  TENET-1, ZA
  5786         201          200  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         172          168  ISU Internet Services Unit (ISU), SA
 18558         136          132  NETBLK-RCOEK, US
327687         134          131  RENU, UG
 55824         127          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

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      /14:33      /15:102     /16:1631    /17:264     /18:275     
/19:456     /20:609     /21:701     /22:1097    /23:1140    /24:7606    
/25:76      /26:59      /27:57      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         381         409  KENET-AS, KE
  8895         167         172  ISU Internet Services Unit (ISU), SA
327700          77          83  MoRENet, MZ
 23024          53          56  OCDE, US
 25977          29          32  HCCS, US
  1916          25          39  Associacao Rede Nacional de Ensino e Pesquisa, 
  2614          24          62  ROEDUNET, RO
 37215          23          29  MAREN, MW
200521          22          38  SEAP-AGE, ES
  3233          21          30  ICI-ROTLD Romanian Natioanal R&D Network, RO

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

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

   1:1         5:15        8:2        12:1        14:84       24:2      
  31:3        37:6        38:4        41:289      42:8        44:4      
  45:37       46:6        49:10       58:4        59:10       60:4      
  61:3        62:6        63:4        64:12       65:1        66:7      
  67:36       68:1        69:9        71:1        72:11       74:8      
  76:5        77:4        78:3        79:10       80:11       81:29     
  82:2        83:8        84:3        85:23       86:6        87:1      
  88:1        89:10       91:44       93:11       94:2        95:3      
  96:5       101:3       102:9       103:208     104:9       106:1      
 108:2       109:8       110:3       111:17      112:4       114:21     
 116:4       117:61      118:17      119:18      121:27      122:8      
 123:8       124:40      125:1       128:66      129:36      130:82     
 131:88      132:53      133:137     134:85      136:191     137:102    
 138:11      139:4       140:31      141:2       142:26      143:32     
 144:27      146:118     147:28      148:7       149:12      150:34     
 151:5       152:64      153:5       154:24      155:39      156:64     
 157:25      158:41      159:111     160:25      161:16      162:8      
 163:57      164:34      165:14      166:1       167:15      168:65     
 169:8       170:5       172:1       173:2       175:20      176:8      
 177:2       178:1       179:6       180:21      182:5       184:2      
 185:34      186:2       188:11      190:26      192:1093    193:218    
 194:100     195:88      196:168     197:199     198:358     199:187    
 200:75      201:6       202:372     203:280     204:314     205:140    
 206:141     207:118     208:47      209:92      210:177     211:13     
 212:163     213:4       216:24      217:15      218:5       219:13     
 220:12      222:4       223:2      

End of report


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