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

REN Routing Table Report cscora at frr.nsrc.org
Wed Feb 16 19:10:29 UTC 2022


IPv4 R&E Routing Table Report   19:10 GMT Wed 16 Feb, 2022

  BGP Table (R&E) as seen at PERN.

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

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

BGP routing table entries examined:                               18571
    Prefixes after maximum aggregation (per Origin AS):           10508
    Deaggregation factor:                                          1.77
    Unique aggregates announced (without unneeded subnets):       11748
    Number of IPv4 prefixes with a valid ROA:                      3692
    Number of IPv4 prefixes with an invalid ROA:                     20
    Number of IPv4 prefixes with no ROA:                          14859
Total ASes present in the Internet Routing Table:                  2774
    Prefixes per ASN:                                              6.69
Origin-only ASes present in the Internet Routing Table:            2397
Origin ASes announcing only one prefix:                            1116
Transit ASes present in the Internet Routing Table:                 377
Transit-only ASes present in the Internet Routing Table:             55
Average AS path length visible in the Internet Routing Table:       5.8
    Max AS path length visible:                                      17
    Max AS path prepend of ASN ( 10497)                              11
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      38566
Number of 32-bit ASNs visible in the Routing Table:                 624
Prefixes from 32-bit ASNs in the Routing Table:                    1690
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:                    205458176
    Equivalent to 12 /8s, 63 /16s and 11 /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:               99.5
Total number of prefixes smaller than registry allocations:        1963

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

Prefixes being announced by APNIC Region ASes:                     4690
    Total APNIC prefixes after maximum aggregation:                2339
    APNIC Deaggregation factor:                                    2.01
Prefixes being announced from the APNIC address blocks:            4692
    Unique aggregates announced from the APNIC address blocks:     2668
APNIC Region origin ASes present in the Internet Routing Table:     590
    APNIC Prefixes per ASN:                                        7.95
APNIC Region origin ASes announcing only one prefix:                254
APNIC Region transit ASes present in the Internet Routing Table:     67
Average APNIC Region AS path length visible:                        5.1
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    229
Number of APNIC addresses announced to Internet:               46049792
    Equivalent to 2 /8s, 190 /16s and 170 /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, 131072-151865
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:                      8152
    Total ARIN prefixes after maximum aggregation:                 4649
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:             8168
    Unique aggregates announced from the ARIN address blocks:      5288
ARIN Region origin ASes present in the Internet Routing Table:     1231
    ARIN Prefixes per ASN:                                         6.64
ARIN Region origin ASes announcing only one prefix:                 451
ARIN Region transit ASes present in the Internet Routing Table:     159
Average ARIN Region AS path length visible:                         6.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     167
Number of ARIN addresses announced to Internet:                94560768
    Equivalent to 5 /8s, 162 /16s and 226 /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:                      3405
    Total RIPE prefixes after maximum aggregation:                 2770
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3392
    Unique aggregates announced from the RIPE address blocks:      2736
RIPE Region origin ASes present in the Internet Routing Table:      681
    RIPE Prefixes per ASN:                                         4.98
RIPE Region origin ASes announcing only one prefix:                 323
RIPE Region transit ASes present in the Internet Routing Table:     102
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          15
Number of RIPE region 32-bit ASNs visible in the Routing Table:     137
Number of RIPE addresses announced to Internet:                58007552
    Equivalent to 3 /8s, 117 /16s and 32 /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:                    1420
    Total LACNIC prefixes after maximum aggregation:                560
    LACNIC Deaggregation factor:                                   2.54
Prefixes being announced from the LACNIC address blocks:           1418
    Unique aggregates announced from the LACNIC address blocks:     763
LACNIC Region origin ASes present in the Internet Routing Table:    165
    LACNIC Prefixes per ASN:                                       8.59
LACNIC Region origin ASes announcing only one prefix:                68
LACNIC Region transit ASes present in the Internet Routing Table:    22
Average LACNIC Region AS path length visible:                       7.0
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    64
Number of LACNIC addresses announced to Internet:               4154112
    Equivalent to 0 /8s, 63 /16s and 99 /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:                    900
    Total AfriNIC prefixes after maximum aggregation:               186
    AfriNIC Deaggregation factor:                                  4.84
Prefixes being announced from the AfriNIC address blocks:           900
    Unique aggregates announced from the AfriNIC address blocks:    292
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     18.75
AfriNIC Region origin ASes announcing only one prefix:               20
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      5.4
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   27
Number of AfriNIC addresses announced to Internet:              2685696
    Equivalent to 0 /8s, 40 /16s and 251 /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         571       2156     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  1237         186         74     135  KREONET-AS-KR KISTI, KR
  7575         175        330     122  AARNET-AS-AP Australian Academic and Re
 58647         165         18       2  KAGAWAU-AS Kagawa University, JP
 55824         131         19      24  NKN-CORE-NW NKN Core Network, IN
  4538         128       4192      72  ERX-CERNET-BKB China Education and Rese
  4621          80         37      10  UNINET-AS-AP UNINET-, TH
  4762          65          4       1  MAHIDOL-BORDER-AS Mahidol University, T
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7896         251         51       7  NU-AS, US
   668         212        702     180  DNIC-AS-00668, US
   376         201        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         149        507      90  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
 23024         114          7      17  OCDE, US
  2920         108         34       6  LACOE, US
 21976          85         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         143         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          98       1520      85  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
   553          72        449      72  BELWUE BelWue-Koordination, DE
  2200          66        647      61  FR-RENATER Reseau National de telecommu
  2614          64         32      55  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         174        207      40  Rede Nacional de Ensino e Pesquisa, BR
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          95         24      54  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
 19611          45         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          44         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
263282          37          5      12  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         351        319      74  TENET-1, ZA
 36914         205         82       3  KENET-AS, KE
  2561          73          5      32  EUN, EG
  8094          50         48       4  PUKNET, ZA
327687          39         28       3  RENU, UG
327700          34         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37074          13          8       2  UG-AS, GH
 37182          13          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         571       2156     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  2018         351        319      74  TENET-1, ZA
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
  7896         251         51       7  NU-AS, US
   668         212        702     180  DNIC-AS-00668, US
 36914         205         82       3  KENET-AS, KE
   376         201        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
   786         186       1774     183  JANET Jisc Services Limited, GB

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

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

   ASN  No of nets  Net Savings  Description
  7497         432          408  CSTNET-AS-AP Computer Network Information Cente
  2018         351          277  TENET-1, ZA
  7896         251          244  NU-AS, US
 36914         205          202  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         165          163  KAGAWAU-AS Kagawa University, JP
  8895         143          139  ISU Internet Services Unit ISU, SA
  1916         174          134  Rede Nacional de Ensino e Pesquisa, BR
 18558         136          132  NETBLK-RCOEK, US
 55824         131          107  NKN-CORE-NW NKN Core Network, IN

Complete listing at https://bgp.nsrc.org/REN/PERN/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
     22226  UNALLOCATED  156.1.0.0/16              2152  CSUNET-NW, US
     19658  UNALLOCATED  199.27.241.0/24          11096  FLORIDANET, US
    395514  UNALLOCATED  205.213.88.0/24           2381  WISCNET1-AS, US

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

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

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  UNASSIGNED
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/PERN/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      
/13:17      /14:34      /15:123     /16:2012    /17:390     /18:437     
/19:569     /20:881     /21:915     /22:1429    /23:1556    /24:10194   
/25:0       /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         192         205  KENET-AS, KE
  8895         138         143  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 25977          31          45  HCCS, US
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
327700          30          34  MoRENet, MZ
 18632          29          55  VOLCANO-VISION, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 32440          29          44  LONI, US

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

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

   1:4         5:15        6:4         8:2        12:1        14:85     
  18:42       23:10       24:3        31:6        37:6        38:9      
  40:1        41:118      42:9        44:5        45:36       46:6      
  47:1        49:10       50:4        52:1        59:20       60:4      
  61:3        62:7        63:38       64:56       65:4        66:50     
  67:44       68:8        69:20       70:2        71:1        72:13     
  74:20       76:34       77:7        78:3        79:10       80:15     
  81:28       82:4        83:6        84:5        85:33       86:4      
  87:1        88:1        89:10       91:44       92:1        93:19     
  94:4        95:5        96:5        97:1        98:2       101:6      
 102:13      103:327     104:75      106:1       107:17      108:10     
 109:10      110:3       111:20      112:4       114:23      116:5      
 117:61      118:32      119:22      121:26      122:8       123:8      
 124:39      125:4       128:82      129:176     130:92      131:89     
 132:58      133:139     134:100     136:193     137:88      138:8      
 139:5       140:50      141:2       142:41      143:31      144:52     
 145:2       146:127     147:60      148:192     149:13      150:39     
 151:6       152:71      153:11      154:25      155:51      156:67     
 157:26      158:42      159:116     160:25      161:22      162:32     
 163:65      164:43      165:55      166:1       167:16      168:119    
 169:10      170:68      171:1       172:2       173:7       175:31     
 176:8       177:12      178:1       179:11      180:21      182:6      
 184:2       185:39      186:3       187:18      188:13      189:5      
 190:33      191:33      192:1345    193:259     194:140     195:86     
 196:150     197:116     198:491     199:285     200:252     201:40     
 202:640     203:425     204:333     205:169     206:198     207:173    
 208:70      209:122     210:185     211:13      212:153     213:4      
 214:7       216:86      217:15      218:25      219:6       220:18     
 222:5       223:3      

End of report


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