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

REN Routing Table Report cscora at frr.nsrc.org
Mon Jun 7 16:15:12 UTC 2021


Global R&E Routing Table Report   16:15 GMT Mon 07 Jun, 2021

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

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

BGP routing table entries examined:                               14616
    Prefixes after maximum aggregation (per Origin AS):            8431
    Deaggregation factor:                                          1.73
    Unique aggregates announced (without unneeded subnets):        9357
Total ASes present in the Internet Routing Table:                  2147
    Prefixes per ASN:                                              6.81
Origin-only ASes present in the Internet Routing Table:            1849
Origin ASes announcing only one prefix:                             887
Transit ASes present in the Internet Routing Table:                 298
Transit-only ASes present in the Internet Routing Table:             33
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:                 7
    Number of instances of unregistered ASNs:                         7
Number of 32-bit ASNs allocated by the RIRs:                      36257
Number of 32-bit ASNs visible in the Routing Table:                 452
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:              1
Number of addresses announced to Internet:                    177142784
    Equivalent to 10 /8s, 142 /16s and 252 /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:        1733

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

Prefixes being announced by APNIC Region ASes:                     3903
    Total APNIC prefixes after maximum aggregation:                2059
    APNIC Deaggregation factor:                                    1.90
Prefixes being announced from the APNIC address blocks:            3904
    Unique aggregates announced from the APNIC address blocks:     2258
APNIC Region origin ASes present in the Internet Routing Table:     458
    APNIC Prefixes per ASN:                                        8.52
APNIC Region origin ASes announcing only one prefix:                202
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:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    164
Number of APNIC addresses announced to Internet:               45077984
    Equivalent to 2 /8s, 175 /16s and 213 /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:                      5488
    Total ARIN prefixes after maximum aggregation:                 3256
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5499
    Unique aggregates announced from the ARIN address blocks:      3694
ARIN Region origin ASes present in the Internet Routing Table:      857
    ARIN Prefixes per ASN:                                         6.42
ARIN Region origin ASes announcing only one prefix:                 312
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:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     104
Number of ARIN addresses announced to Internet:                70883168
    Equivalent to 4 /8s, 57 /16s and 151 /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:                      3151
    Total RIPE prefixes after maximum aggregation:                 2527
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3146
    Unique aggregates announced from the RIPE address blocks:      2592
RIPE Region origin ASes present in the Internet Routing Table:      631
    RIPE Prefixes per ASN:                                         4.99
RIPE Region origin ASes announcing only one prefix:                 303
RIPE Region transit ASes present in the Internet Routing Table:     100
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     118
Number of RIPE addresses announced to Internet:                56189312
    Equivalent to 3 /8s, 89 /16s and 97 /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:                     882
    Total LACNIC prefixes after maximum aggregation:                398
    LACNIC Deaggregation factor:                                   2.22
Prefixes being announced from the LACNIC address blocks:            881
    Unique aggregates announced from the LACNIC address blocks:     514
LACNIC Region origin ASes present in the Internet Routing Table:    121
    LACNIC Prefixes per ASN:                                       7.28
LACNIC Region origin ASes announcing only one prefix:                51
LACNIC Region transit ASes present in the Internet Routing Table:    20
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        12
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    43
Number of LACNIC addresses announced to Internet:               2389568
    Equivalent to 0 /8s, 36 /16s and 118 /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:                   1185
    Total AfriNIC prefixes after maximum aggregation:               185
    AfriNIC Deaggregation factor:                                  6.41
Prefixes being announced from the AfriNIC address blocks:          1185
    Unique aggregates announced from the AfriNIC address blocks:    298
AfriNIC Region origin ASes present in the Internet Routing Table:    44
    AfriNIC Prefixes per ASN:                                     26.93
AfriNIC Region origin ASes announcing only one prefix:               19
AfriNIC Region transit ASes present in the Internet Routing Table:    9
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:   23
Number of AfriNIC addresses announced to Internet:              2598656
    Equivalent to 0 /8s, 39 /16s and 167 /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         618       2155     455  UNALLOCATED
  7497         418        209      20  UNALLOCATED
  1237         191         75     137  UNALLOCATED
  7575         180        331     127  UNALLOCATED
 58647         176         18       2  UNALLOCATED
  4538         168       4192      72  UNALLOCATED
 55824         128         19      22  UNALLOCATED
  1659          55       1450      34  UNALLOCATED
  2697          55          3      31  UNALLOCATED
 38280          50          3       2  UNALLOCATED

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  UNALLOCATED
  5786         201         16       1  UNALLOCATED
  2152         160        507      92  UNALLOCATED
 18558         137         18       4  UNALLOCATED
   270         117        297      87  UNALLOCATED
  2920         112         34       6  UNALLOCATED
 21976          86         51      18  UNALLOCATED
  1736          80         16       1  UNALLOCATED
 22742          66         51      32  UNALLOCATED
 15296          65          5      54  UNALLOCATED

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  UNALLOCATED
   786         187       1787     185  UNALLOCATED
  8895         171         24       4  UNALLOCATED
   559         116        550     107  UNALLOCATED
  1103          95       1520      84  UNALLOCATED
   137          82        677      77  UNALLOCATED
  2200          66        647      61  UNALLOCATED
  2614          62         32      59  UNALLOCATED
  1930          56         82      51  UNALLOCATED
  1653          52        151      49  UNALLOCATED

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         120        120      47  UNALLOCATED
 11340          94         24      54  UNALLOCATED
  1251          66         37      20  UNALLOCATED
  2715          51         53      33  UNALLOCATED
  4270          44         16       1  UNALLOCATED
 61468          41          3      15  UNALLOCATED
263282          37          5      12  UNALLOCATED
 20191          31         16       1  UNALLOCATED
 28571          27         26      15  UNALLOCATED
271640          27          8       1  UNALLOCATED

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         415         82       3  UNALLOCATED
  2018         321        319      72  UNALLOCATED
327687         136         28       3  UNALLOCATED
  2561          74          5      34  UNALLOCATED
  8094          55         48       4  UNALLOCATED
327700          39         16       1  UNALLOCATED
 37215          29          8       1  UNALLOCATED
  6879          24          2       9  UNALLOCATED
 37501          11         49       6  UNALLOCATED
 37182           9          8       1  UNALLOCATED

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         618       2155     455  UNALLOCATED
  7497         418        209      20  UNALLOCATED
 36914         415         82       3  UNALLOCATED
  2018         321        319      72  UNALLOCATED
   680         273       1996     235  UNALLOCATED
   376         226        180     149  UNALLOCATED
  5786         201         16       1  UNALLOCATED
  1237         191         75     137  UNALLOCATED
   786         187       1787     185  UNALLOCATED
  7575         180        331     127  UNALLOCATED

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         415          412  UNALLOCATED
  7497         418          398  UNALLOCATED
  2018         321          249  UNALLOCATED
  5786         201          200  UNALLOCATED
 58647         176          174  UNALLOCATED
  8895         171          167  UNALLOCATED
 18558         137          133  UNALLOCATED
327687         136          133  UNALLOCATED
 55824         128          106  UNALLOCATED
  2920         112          106  UNALLOCATED

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  UNALLOCATED
     36843  UNALLOCATED  108.59.20.0/24           11096  UNALLOCATED
     36843  UNALLOCATED  131.91.183.0/24          11096  UNALLOCATED
     36843  UNALLOCATED  146.201.218.0/24         11096  UNALLOCATED
     36843  UNALLOCATED  146.201.219.0/24         11096  UNALLOCATED
     22063  UNALLOCATED  153.10.0.0/16             2152  UNALLOCATED
    328439  UNALLOCATED  164.160.240.0/20        327992  UNALLOCATED

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

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

Unassigned Network     ASN Information  AS Name
164.160.240.0/20     Origin:    328439  UNALLOCATED
                    Transit:    327992  UNALLOCATED

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      /15:103     /16:1681    /17:282     /18:298     
/19:472     /20:653     /21:746     /22:1147    /23:1196    /24:7784    
/25:77      /26:59      /27:50      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         389         415  UNALLOCATED
  8895         166         171  UNALLOCATED
 23024          53          56  UNALLOCATED
327700          33          39  UNALLOCATED
263282          30          37  UNALLOCATED
 25977          29          32  UNALLOCATED
200521          25          41  UNALLOCATED
  1916          24         120  UNALLOCATED
  2614          24          62  UNALLOCATED
 37215          23          29  UNALLOCATED

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        38:3        41:239      42:9        44:4      
  45:34       46:6        49:10       58:4        59:19       60:4      
  61:3        62:6        63:4        64:13       66:6        67:36     
  68:1        69:13       71:1        72:11       74:8        76:6      
  77:5        78:3        79:10       80:13       81:29       82:2      
  83:8        84:3        85:29       86:9        87:1        88:1      
  89:10       91:46       93:11       94:2        95:3        96:5      
 100:1       101:3       102:8       103:207     104:9       106:1      
 108:3       109:8       110:3       111:16      112:4       114:18     
 116:4       117:2       118:32      119:18      121:27      122:8      
 123:8       124:40      125:1       128:66      129:29      130:82     
 131:84      132:49      133:137     134:83      136:191     137:116    
 138:11      139:4       140:30      141:2       142:40      143:32     
 144:27      146:121     147:26      148:7       149:12      150:17     
 151:3       152:65      153:5       154:24      155:33      156:64     
 157:25      158:41      159:113     160:26      161:16      162:8      
 163:60      164:35      165:14      166:1       167:15      168:96     
 169:8       170:37      172:1       173:2       175:20      176:8      
 177:4       178:1       179:6       180:21      182:5       184:3      
 185:35      186:2       187:1       188:13      190:41      191:25     
 192:1187    193:221     194:111     195:88      196:169     197:201    
 198:333     199:184     200:162     201:7       202:382     203:283    
 204:312     205:88      206:144     207:120     208:47      209:94     
 210:178     211:13      212:165     213:4       216:31      217:16     
 218:5       219:13      220:12      222:4       223:2      

End of report


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