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

REN Routing Table Report cscora at frr.nsrc.org
Fri Aug 13 17:05:59 UTC 2021


Global R&E Routing Table Report   17:05 GMT Fri 13 Aug, 2021

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

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

BGP routing table entries examined:                               14056
    Prefixes after maximum aggregation (per Origin AS):            8282
    Deaggregation factor:                                          1.70
    Unique aggregates announced (without unneeded subnets):        9166
Total ASes present in the Internet Routing Table:                  2132
    Prefixes per ASN:                                              6.59
Origin-only ASes present in the Internet Routing Table:            1841
Origin ASes announcing only one prefix:                             876
Transit ASes present in the Internet Routing Table:                 291
Transit-only ASes present in the Internet Routing Table:             41
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:                11
    Number of instances of unregistered ASNs:                        11
Number of 32-bit ASNs allocated by the RIRs:                      36878
Number of 32-bit ASNs visible in the Routing Table:                 473
Prefixes from 32-bit ASNs in the Routing Table:                    1356
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:                    174272000
    Equivalent to 10 /8s, 99 /16s and 46 /24s
    Percentage of available address space announced:                4.7
    Percentage of allocated address space announced:                4.7
    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:        1438

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

Prefixes being announced by APNIC Region ASes:                     3905
    Total APNIC prefixes after maximum aggregation:                2085
    APNIC Deaggregation factor:                                    1.87
Prefixes being announced from the APNIC address blocks:            3907
    Unique aggregates announced from the APNIC address blocks:     2297
APNIC Region origin ASes present in the Internet Routing Table:     470
    APNIC Prefixes per ASN:                                        8.31
APNIC Region origin ASes announcing only one prefix:                208
APNIC Region transit ASes present in the Internet Routing Table:     47
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:    176
Number of APNIC addresses announced to Internet:               44781408
    Equivalent to 2 /8s, 171 /16s and 79 /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, 131072-147769
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:                      5305
    Total ARIN prefixes after maximum aggregation:                 3148
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5319
    Unique aggregates announced from the ARIN address blocks:      3579
ARIN Region origin ASes present in the Internet Routing Table:      840
    ARIN Prefixes per ASN:                                         6.33
ARIN Region origin ASes announcing only one prefix:                 304
ARIN Region transit ASes present in the Internet Routing Table:     108
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     109
Number of ARIN addresses announced to Internet:                68588160
    Equivalent to 4 /8s, 22 /16s and 146 /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:                      3043
    Total RIPE prefixes after maximum aggregation:                 2447
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3039
    Unique aggregates announced from the RIPE address blocks:      2545
RIPE Region origin ASes present in the Internet Routing Table:      601
    RIPE Prefixes per ASN:                                         5.06
RIPE Region origin ASes announcing only one prefix:                 294
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:     114
Number of RIPE addresses announced to Internet:                55569312
    Equivalent to 3 /8s, 79 /16s and 235 /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:                     987
    Total LACNIC prefixes after maximum aggregation:                440
    LACNIC Deaggregation factor:                                   2.24
Prefixes being announced from the LACNIC address blocks:            985
    Unique aggregates announced from the LACNIC address blocks:     522
LACNIC Region origin ASes present in the Internet Routing Table:    134
    LACNIC Prefixes per ASN:                                       7.35
LACNIC Region origin ASes announcing only one prefix:                52
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:    53
Number of LACNIC addresses announced to Internet:               2786432
    Equivalent to 0 /8s, 42 /16s and 132 /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:                    805
    Total AfriNIC prefixes after maximum aggregation:               152
    AfriNIC Deaggregation factor:                                  5.30
Prefixes being announced from the AfriNIC address blocks:           805
    Unique aggregates announced from the AfriNIC address blocks:    222
AfriNIC Region origin ASes present in the Internet Routing Table:    42
    AfriNIC Prefixes per ASN:                                     19.17
AfriNIC Region origin ASes announcing only one prefix:               18
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   21
Number of AfriNIC addresses announced to Internet:              2546432
    Equivalent to 0 /8s, 38 /16s and 219 /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     456  SINET-AS Research Organization of Infor
  7497         432        211      23  CSTNET-AS-AP Computer Network Informati
  1237         190         75     137  KREONET-AS-KR KISTI, KR
  7575         180        330     126  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  4538         169       4192      72  ERX-CERNET-BKB China Education and Rese
 55824         128         19      22  NKN-CORE-NW NKN Core Network, IN
  2697          55          3      31  ERX-ERNET-AS Education and Research Net
  1659          54       1450      34  ERX-TANET-ASN1 Taiwan Academic Network 
132524          49          9      11  TIFR-AS Tata Institute of Fundamental R

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         199         16       1  UPRENET, PR
  2152         156        507      85  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
   270         117        297      87  AS270, US
   376         113          9      66  RISQ-AS, CA
  2920         111         34       6  LACOE, US
 21976          86         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US
  3477          70         71      41  NOAA-NWAVE, US
 22742          66         52      33  CT-EDU-NET, 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         186       1763     184  JANET Jisc Services Limited, GB
  8895         173         24       4  ISU Internet Services Unit ISU, SA
   559         116        550     107  SWITCH Peering requests: peering at switch
  1103          95       1520      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          66        647      61  FR-RENATER Reseau National de telecommu
  2614          62         32      59  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol
  1653          52        151      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         116        120      50  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
  2715          51         53      33  Fundacao Carlos Chagas Filho de Amparo 
 19611          44         17       2  Associacao Antonio Vieira - Unisinos, B
 61468          41          3      15  CEDIA, EC
  4270          40         16       1  Red de Interconexion Universitaria, AR
 28614          38          2       2  Fundacao Universidade Regional de Blume
 28571          37         26      15  UNIVERSIDADE DE SAO PAULO, BR
 20191          31         16       1  Pontificia Universidad Catolica de Chil

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         326        319      72  TENET-1, ZA
327687         134         28       3  RENU, UG
 36914          99         82       3  KENET-AS, KE
  8094          55         48       4  PUKNET, ZA
327700          38         16       1  MoRENet, MZ
 37215          31          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37501          11         49       6  UOFS, ZA
 37182          10          8       1  TERNET, TZ
 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     456  SINET-AS Research Organization of Infor
  7497         432        211      23  CSTNET-AS-AP Computer Network Informati
  2018         326        319      72  TENET-1, ZA
   680         273       1996     235  DFN Verein zur Foerderung eines Deutsch
  5786         199         16       1  UPRENET, PR
  1237         190         75     137  KREONET-AS-KR KISTI, KR
   786         186       1763     184  JANET Jisc Services Limited, GB
  7575         180        330     126  AARNET-AS-AP Australian Academic and Re
 58647         176         18       2  KAGAWAU-AS Kagawa University, JP
  8895         173         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         432          409  CSTNET-AS-AP Computer Network Information Cente
  2018         326          254  TENET-1, ZA
  5786         199          198  UPRENET, PR
 58647         176          174  KAGAWAU-AS Kagawa University, JP
  8895         173          169  ISU Internet Services Unit ISU, SA
 18558         137          133  NETBLK-RCOEK, US
327687         134          131  RENU, UG
 55824         128          106  NKN-CORE-NW NKN Core Network, IN
  2920         111          105  LACOE, US
  4538         169           97  ERX-CERNET-BKB China Education and Research Net

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
     36843  UNALLOCATED  64.56.80.0/23            11096  FLORIDANET, US
     36843  UNALLOCATED  108.59.20.0/24           11096  FLORIDANET, US
     36843  UNALLOCATED  131.91.183.0/24          11096  FLORIDANET, US
     14822  UNALLOCATED  140.163.6.0/24           10466  MAGPI, US
     14822  UNALLOCATED  140.163.64.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.70.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.128.0/17         10466  MAGPI, US
     36843  UNALLOCATED  146.201.218.0/24         11096  FLORIDANET, US
     36843  UNALLOCATED  146.201.219.0/24         11096  FLORIDANET, US
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US

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

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

Unassigned Network     ASN Information  AS Name
204.194.253.0/24     Origin:     46788  UNASSIGNED
                    Transit:      2381  WISCNET1-AS, US

Complete listing at https://bgp.nsrc.org/REN/ASREN/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       /12:10      
/13:19      /14:35      /15:102     /16:1643    /17:270     /18:285     
/19:442     /20:657     /21:733     /22:1095    /23:1183    /24:7397    
/25:72      /26:58      /27:51      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
  8895         168         173  ISU Internet Services Unit ISU, SA
 36914          86          99  KENET-AS, KE
 23024          53          56  OCDE, US
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
327700          32          38  MoRENet, MZ
 25977          29          32  HCCS, US
200521          29          47  SEAP-AGE, ES
  1916          25         116  Associacao Rede Nacional de Ensino e Pesquisa, 
 37215          25          31  MAREN, MW
  2614          24          62  ROEDUNET, RO

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       23:1      
  24:2        31:1        37:6        38:3        41:141      42:9      
  44:4        45:32       46:6        49:10       58:4        59:10     
  60:4        61:3        62:6        63:4        64:12       66:5      
  67:35       68:1        69:14       71:1        72:11       74:14     
  76:13       77:6        78:3        79:10       80:11       81:26     
  82:2        83:7        84:3        85:24       86:6        87:1      
  88:1        89:9        91:45       93:18       94:2        95:4      
  96:5       101:3       102:8       103:243     104:11      106:1      
 108:4       109:8       110:3       111:16      112:4       114:21     
 116:5       117:6       118:17      119:19      121:27      122:8      
 123:8       124:42      128:64      129:29      130:84      131:90     
 132:48      133:137     134:84      136:189     137:111     138:10     
 139:4       140:34      141:2       142:21      143:32      144:27     
 146:121     147:28      148:7       149:12      150:19      151:6      
 152:65      153:6       154:24      155:35      156:65      157:25     
 158:42      159:116     160:25      161:16      162:9       163:61     
 164:35      165:16      167:16      168:100     169:9       170:40     
 172:2       173:1       175:21      176:8       177:8       178:1      
 179:10      180:21      182:5       184:3       185:31      186:1      
 187:17      188:13      189:6       190:36      191:5       192:1167   
 193:178     194:100     195:58      196:168     197:5       198:314    
 199:172     200:173     201:22      202:372     203:285     204:300    
 205:110     206:121     207:126     208:45      209:89      210:177    
 211:2       212:169     213:2       216:43      217:14      218:5      
 219:13      220:15      222:4       223:2      

End of report


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