[REN-BGP-stats-all] IPv4 R&E Routing Table Report - URAN (R&E) view

REN Routing Table Report cscora at frr.nsrc.org
Sun Jul 23 17:10:38 UTC 2023


IPv4 R&E Routing Table Report   17:10 GMT Sun 23 Jul, 2023

  IPv4 BGP Table (R&E) as seen at URAN.

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

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

BGP routing table entries examined:                               18529
    Prefixes after maximum aggregation (per Origin AS):           10359
    Deaggregation factor:                                          1.79
    Unique aggregates announced (without unneeded subnets):       11470
    Number of IPv4 prefixes with a valid ROA:                      4964
    Number of IPv4 prefixes with an invalid ROA:                      1
    Number of IPv4 prefixes with no ROA:                          13564
Total ASes present in the Internet Routing Table:                  2660
    Prefixes per ASN:                                              6.97
Origin-only ASes present in the Internet Routing Table:            2296
Origin ASes announcing only one prefix:                            1016
Transit ASes present in the Internet Routing Table:                 364
Transit-only ASes present in the Internet Routing Table:             61
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      20
    Max AS path prepend of ASN (395156)                              12
Prefixes from unregistered ASNs in the Routing Table:                 3
    Number of instances of unregistered ASNs:                         3
Number of 32-bit ASNs allocated by the RIRs:                      42285
Number of 32-bit ASNs visible in the Routing Table:                 611
Prefixes from 32-bit ASNs in the Routing Table:                    1866
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:              3
Number of addresses announced to Internet:                    205419968
    Equivalent to 12 /8s, 62 /16s and 117 /24s
    Percentage of available address space announced:                5.5
    Percentage of allocated address space announced:                5.5
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:        2106

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

Prefixes being announced by APNIC Region ASes:                     4683
    Total APNIC prefixes after maximum aggregation:                2247
    APNIC Deaggregation factor:                                    2.08
Prefixes being announced from the APNIC address blocks:            4683
    Unique aggregates announced from the APNIC address blocks:     2568
APNIC Region origin ASes present in the Internet Routing Table:     538
    APNIC Prefixes per ASN:                                        8.70
APNIC Region origin ASes announcing only one prefix:                225
APNIC Region transit ASes present in the Internet Routing Table:     55
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    200
Number of APNIC addresses announced to Internet:               45755968
    Equivalent to 2 /8s, 186 /16s and 46 /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, 131072-153913
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:                      7962
    Total ARIN prefixes after maximum aggregation:                 4676
    ARIN Deaggregation factor:                                     1.70
Prefixes being announced from the ARIN address blocks:             7975
    Unique aggregates announced from the ARIN address blocks:      5167
ARIN Region origin ASes present in the Internet Routing Table:     1230
    ARIN Prefixes per ASN:                                         6.48
ARIN Region origin ASes announcing only one prefix:                 426
ARIN Region transit ASes present in the Internet Routing Table:     155
Average ARIN Region AS path length visible:                         5.2
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     185
Number of ARIN addresses announced to Internet:                95204320
    Equivalent to 5 /8s, 172 /16s and 179 /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:                      3368
    Total RIPE prefixes after maximum aggregation:                 2694
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3357
    Unique aggregates announced from the RIPE address blocks:      2732
RIPE Region origin ASes present in the Internet Routing Table:      612
    RIPE Prefixes per ASN:                                         5.49
RIPE Region origin ASes announcing only one prefix:                 276
RIPE Region transit ASes present in the Internet Routing Table:     103
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          12
Number of RIPE region 32-bit ASNs visible in the Routing Table:     130
Number of RIPE addresses announced to Internet:                57573376
    Equivalent to 3 /8s, 110 /16s and 128 /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:                    1433
    Total LACNIC prefixes after maximum aggregation:                567
    LACNIC Deaggregation factor:                                   2.53
Prefixes being announced from the LACNIC address blocks:           1432
    Unique aggregates announced from the LACNIC address blocks:     776
LACNIC Region origin ASes present in the Internet Routing Table:    166
    LACNIC Prefixes per ASN:                                       8.63
LACNIC Region origin ASes announcing only one prefix:                63
LACNIC Region transit ASes present in the Internet Routing Table:    27
Average LACNIC Region AS path length visible:                       5.7
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    69
Number of LACNIC addresses announced to Internet:               4223648
    Equivalent to 0 /8s, 64 /16s and 114 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                   1080
    Total AfriNIC prefixes after maximum aggregation:               172
    AfriNIC Deaggregation factor:                                  6.28
Prefixes being announced from the AfriNIC address blocks:          1079
    Unique aggregates announced from the AfriNIC address blocks:    224
AfriNIC Region origin ASes present in the Internet Routing Table:    51
    AfriNIC Prefixes per ASN:                                     21.16
AfriNIC Region origin ASes announcing only one prefix:               26
AfriNIC Region transit ASes present in the Internet Routing Table:    9
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   27
Number of AfriNIC addresses announced to Internet:              2661632
    Equivalent to 0 /8s, 40 /16s and 157 /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         603       2147     466  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  4538         197       4192      73  ERX-CERNET-BKB China Education and Rese
  1237         194         74     139  KREONET-AS-KR KISTI, KR
 58647         178         18       2  KAGAWAU-AS Kagawa University, JP
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
 55824         122         18      14  NKN-CORE-NW NKN Core Network, IN
  4621          70         37      10  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T
  4762          65          4       1  MAHIDOL-BORDER-AS Mahidol University, T

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   668         217        636     180  DNIC-AS-00668, US
   376         202        178     150  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  2152         142        507      92  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
    81         128        521      31  NCREN, US
   270         117        329      82  AS270, US
 23024         113          7      17  OCDE, US
  2920         109         34       7  LACOE, US
 32440         108         35      18  LONI, US

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1767     183  JANET Jisc Services Limited, GB
  8895         163         24       5  ISU Internet Services Unit ISU, SA
   559         111        533     103  SWITCH Peering requests: peering at switch
  1103          94       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          94         27      74  ROEDUNET, RO
   137          81        676      77  ASGARR Consortium GARR, IT
   553          74        465      74  BELWUE BelWue-Koordination, DE
  1930          65         81      60  RCCN Fundacao para a Ciencia e a Tecnol
  2200          64        599      59  FR-RENATER Reseau National de telecommu

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         258        175      41  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         101         24      46  Red Universitaria Nacional, CL
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
  4270          48         16       1  Red de Interconexion Universitaria, AR
 61468          42          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
 19611          37         17       2  Associacao Antonio Vieira - Unisinos, B
  3596          35          4       3  Universidad Autonoma Metropolitana, MX
271640          34          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         363        319      72  TENET-1, ZA
 36914         261         82       3  KENET-AS, KE
327687         161         28       3  RENU, UG
  8094          48         48      15  PUKNET, ZA
327700          44         16       1  MoRENet, MZ
 37215          37          8       1  MAREN, MW
  3208          32          2       1  ARN, DZ
  6879          24          2       9  ENSTINET-, EG
 37074          13          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         603       2147     466  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  2018         363        319      72  TENET-1, ZA
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
 36914         261         82       3  KENET-AS, KE
  1916         258        175      41  Rede Nacional de Ensino e Pesquisa, BR
   668         217        636     180  DNIC-AS-00668, US
   376         202        178     150  RISQ-AS, CA
  4538         197       4192      73  ERX-CERNET-BKB China Education and Rese
  5786         197         16       1  UPRENET, PR

Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  7497         434          411  CSTNET-AS-AP Computer Network Information Cente
  2018         363          291  TENET-1, ZA
 36914         261          258  KENET-AS, KE
  1916         258          217  Rede Nacional de Ensino e Pesquisa, BR
  5786         197          196  UPRENET, PR
 58647         178          176  KAGAWAU-AS Kagawa University, JP
  8895         163          158  ISU Internet Services Unit ISU, SA
327687         161          158  RENU, UG
 18558         136          132  NETBLK-RCOEK, US
  4538         197          124  ERX-CERNET-BKB China Education and Research Net

Complete listing at https://bgp.nsrc.org/REN/URAN/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

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

Unassigned Network     ASN Information  AS Name
102.36.194.0/23      Origin:      2018  TENET-1, ZA
102.36.194.0/23     Transit:     20965  GEANT The GEANT IP Service, NL
192.31.196.0/24      Origin:       112  UNASSIGNED
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
202.58.231.0/24      Origin:    134096  EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24     Transit:      7575  AARNET-AS-AP Australian Academic and Res

Complete listing at https://bgp.nsrc.org/REN/URAN/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      /15:122     /16:2007    /17:423     /18:438     
/19:559     /20:830     /21:843     /22:1434    /23:1497    /24:10082   
/25:87      /26:64      /27:75      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         249         261  KENET-AS, KE
  8895         158         163  ISU Internet Services Unit ISU, SA
 32440          79         108  LONI, US
 23024          52         113  OCDE, US
  1916          39         258  Rede Nacional de Ensino e Pesquisa, BR
327700          38          44  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 37215          31          37  MAREN, MW
 25977          30          44  HCCS, US

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

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

   1:2         5:15        6:4         8:2        12:1        14:89     
  23:6        24:3        31:7        35:2        38:9        40:1      
  41:148      42:16       44:6        45:32       46:5        47:1      
  49:9        50:1        52:1        58:12       59:20       60:4      
  61:3        62:6        63:33       64:57       65:1        66:33     
  67:41       68:8        69:19       70:2        71:1        72:7      
  74:50       76:40       77:8        78:3        79:10       80:10     
  81:25       82:4        83:6        84:9        85:29       86:9      
  87:1        89:10       91:47       93:4        94:4        95:2      
  96:5        97:1        98:2       101:4       102:31      103:252    
 104:80      108:8       109:9       110:1       111:16      114:23     
 116:6       117:61      118:33      119:18      121:29      122:8      
 123:8       124:38      125:4       128:87      129:38      130:87     
 131:55      132:60      133:155     134:105     136:197     137:130    
 138:10      139:5       140:52      141:1       142:38      143:21     
 144:25      145:2       146:130     147:57      148:192     149:12     
 150:43      151:11      152:136     153:14      154:30      155:63     
 156:67      157:23      158:38      159:115     160:27      161:24     
 162:20      163:78      164:10      165:46      166:1       167:13     
 168:106     169:8       170:65      172:3       173:6       175:27     
 176:8       177:5       179:12      180:15      181:1       182:1      
 184:3       185:46      186:3       187:17      188:12      189:3      
 190:18      191:13      192:1440    193:283     194:122     195:71     
 196:203     197:167     198:482     199:285     200:286     201:38     
 202:629     203:429     204:351     205:127     206:187     207:168    
 208:70      209:115     210:185     211:3       212:163     213:2      
 214:8       216:86      217:10      218:22      219:12      220:16     
 222:3       223:14     

End of report


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