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

REN Routing Table Report cscora at frr.nsrc.org
Sun Jul 25 17:05:58 UTC 2021


Global R&E Routing Table Report   17:05 GMT Sun 25 Jul, 2021

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

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

BGP routing table entries examined:                               14089
    Prefixes after maximum aggregation (per Origin AS):            8312
    Deaggregation factor:                                          1.70
    Unique aggregates announced (without unneeded subnets):        9275
Total ASes present in the Internet Routing Table:                  2119
    Prefixes per ASN:                                              6.65
Origin-only ASes present in the Internet Routing Table:            1831
Origin ASes announcing only one prefix:                             867
Transit ASes present in the Internet Routing Table:                 288
Transit-only ASes present in the Internet Routing Table:             35
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      16
    Max AS path prepend of ASN (207352)                              12
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:                      36704
Number of 32-bit ASNs visible in the Routing Table:                 458
Prefixes from 32-bit ASNs in the Routing Table:                    1300
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:                    176335712
    Equivalent to 10 /8s, 130 /16s and 171 /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:        1445

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

Prefixes being announced by APNIC Region ASes:                     3886
    Total APNIC prefixes after maximum aggregation:                2057
    APNIC Deaggregation factor:                                    1.89
Prefixes being announced from the APNIC address blocks:            3888
    Unique aggregates announced from the APNIC address blocks:     2286
APNIC Region origin ASes present in the Internet Routing Table:     457
    APNIC Prefixes per ASN:                                        8.51
APNIC Region origin ASes announcing only one prefix:                199
APNIC Region transit ASes present in the Internet Routing Table:     46
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:    169
Number of APNIC addresses announced to Internet:               44798688
    Equivalent to 2 /8s, 171 /16s and 146 /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:                      5399
    Total ARIN prefixes after maximum aggregation:                 3200
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             5409
    Unique aggregates announced from the ARIN address blocks:      3686
ARIN Region origin ASes present in the Internet Routing Table:      850
    ARIN Prefixes per ASN:                                         6.36
ARIN Region origin ASes announcing only one prefix:                 307
ARIN Region transit ASes present in the Internet Routing Table:     106
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:     103
Number of ARIN addresses announced to Internet:                70531968
    Equivalent to 4 /8s, 52 /16s and 59 /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:                      3041
    Total RIPE prefixes after maximum aggregation:                 2445
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3041
    Unique aggregates announced from the RIPE address blocks:      2538
RIPE Region origin ASes present in the Internet Routing Table:      597
    RIPE Prefixes per ASN:                                         5.09
RIPE Region origin ASes announcing only one prefix:                 290
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:                          16
Number of RIPE region 32-bit ASNs visible in the Routing Table:     113
Number of RIPE addresses announced to Internet:                55651488
    Equivalent to 3 /8s, 81 /16s and 44 /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:                     951
    Total LACNIC prefixes after maximum aggregation:                445
    LACNIC Deaggregation factor:                                   2.14
Prefixes being announced from the LACNIC address blocks:            949
    Unique aggregates announced from the LACNIC address blocks:     534
LACNIC Region origin ASes present in the Internet Routing Table:    132
    LACNIC Prefixes per ASN:                                       7.19
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:    50
Number of LACNIC addresses announced to Internet:               2755936
    Equivalent to 0 /8s, 42 /16s and 13 /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:                    801
    Total AfriNIC prefixes after maximum aggregation:               155
    AfriNIC Deaggregation factor:                                  5.17
Prefixes being announced from the AfriNIC address blocks:           801
    Unique aggregates announced from the AfriNIC address blocks:    230
AfriNIC Region origin ASes present in the Internet Routing Table:    44
    AfriNIC Prefixes per ASN:                                     18.20
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:                      4.5
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   23
Number of AfriNIC addresses announced to Internet:              2593536
    Equivalent to 0 /8s, 39 /16s and 147 /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         429        209      20  UNALLOCATED
  1237         192         75     137  UNALLOCATED
  7575         179        330     125  UNALLOCATED
 58647         176         18       2  UNALLOCATED
  4538         168       4192      72  UNALLOCATED
 55824         128         19      22  UNALLOCATED
  2697          55          3      31  UNALLOCATED
  1659          54       1450      34  UNALLOCATED
132524          48          9      11  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         213        178     140  UNALLOCATED
  5786         201         16       1  UNALLOCATED
  2152         155        507      87  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
  3477          67         70      39  UNALLOCATED
 22742          67         52      33  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       1779     185  UNALLOCATED
  8895         173         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          57         81      52  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         117        121      51  UNALLOCATED
 11340          94         24      54  UNALLOCATED
  1251          65         37      20  UNALLOCATED
  2715          51         53      33  UNALLOCATED
  4270          44         16       1  UNALLOCATED
 61468          41          3      15  UNALLOCATED
 28614          38          2       2  UNALLOCATED
 28571          37         26      15  UNALLOCATED
 20191          31         16       1  UNALLOCATED
  3597          23          2      17  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
  2018         326        319      72  UNALLOCATED
327687         133         28       3  UNALLOCATED
 36914          96         82       3  UNALLOCATED
  8094          55         48       4  UNALLOCATED
327700          38         16       1  UNALLOCATED
 37215          30          8       1  UNALLOCATED
  6879          24          2       9  UNALLOCATED
 37501          11         49       6  UNALLOCATED
 37182          10          8       1  UNALLOCATED
 36982           8         33       8  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         429        209      20  UNALLOCATED
  2018         326        319      72  UNALLOCATED
   680         273       1996     235  UNALLOCATED
   376         213        178     140  UNALLOCATED
  5786         201         16       1  UNALLOCATED
  1237         192         75     137  UNALLOCATED
   786         187       1779     185  UNALLOCATED
  7575         179        330     125  UNALLOCATED
 58647         176         18       2  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
  7497         429          409  UNALLOCATED
  2018         326          254  UNALLOCATED
  5786         201          200  UNALLOCATED
 58647         176          174  UNALLOCATED
  8895         173          169  UNALLOCATED
 18558         137          133  UNALLOCATED
327687         133          130  UNALLOCATED
 55824         128          106  UNALLOCATED
  2920         112          106  UNALLOCATED
  4538         168           96  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
     14822  UNALLOCATED  140.163.6.0/24           10466  UNALLOCATED
     14822  UNALLOCATED  140.163.64.0/24          10466  UNALLOCATED
     14822  UNALLOCATED  140.163.70.0/24          10466  UNALLOCATED
     14822  UNALLOCATED  140.163.128.0/17         10466  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

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      /15:102     /16:1672    /17:273     /18:299     
/19:446     /20:650     /21:705     /22:1093    /23:1142    /24:7456    
/25:75      /26:58      /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
  8895         168         173  UNALLOCATED
 36914          83          96  UNALLOCATED
 23024          53          56  UNALLOCATED
 28614          32          38  UNALLOCATED
327700          32          38  UNALLOCATED
 25977          29          32  UNALLOCATED
200521          28          44  UNALLOCATED
  1916          24         117  UNALLOCATED
  2614          24          62  UNALLOCATED
 37215          24          30  UNALLOCATED

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      
  24:2        31:1        37:6        38:6        41:138      42:9      
  44:4        45:36       46:6        49:10       58:4        59:10     
  60:4        61:3        62:6        63:4        64:13       66:5      
  67:41       68:1        69:13       72:11       74:16       76:11     
  77:6        78:3        79:10       80:11       81:29       82:2      
  83:7        84:3        85:22       86:9        87:1        88:1      
  89:10       91:45       93:11       94:2        95:4        96:5      
 101:3       102:8       103:222     104:5       106:1       108:4      
 109:8       110:3       111:16      112:4       114:18      116:4      
 117:2       118:17      119:19      121:27      122:8       123:8      
 124:42      128:65      129:30      130:83      131:90      132:52     
 133:137     134:83      136:191     137:123     138:10      139:4      
 140:34      141:2       142:25      143:32      144:27      146:121    
 147:26      148:7       149:12      150:19      151:5       152:62     
 153:6       154:24      155:35      156:64      157:25      158:41     
 159:116     160:25      161:16      162:15      163:59      164:35     
 165:16      167:16      168:99      169:10      170:40      172:2      
 173:1       175:20      176:8       177:6       178:1       179:10     
 180:21      182:5       184:3       185:31      186:2       187:17     
 188:13      189:6       190:53      191:9       192:1183    193:176    
 194:97      195:59      196:167     197:4       198:327     199:183    
 200:160     201:22      202:376     203:290     204:307     205:88     
 206:138     207:130     208:43      209:92      210:182     211:13     
 212:168     213:2       216:45      217:15      218:5       219:13     
 220:9       222:4       223:2      

End of report


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