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

REN Routing Table Report cscora at frr.nsrc.org
Mon Feb 13 20:00:41 UTC 2023


IPv4 R&E Routing Table Report   20:00 GMT Mon 13 Feb, 2023

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

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

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

BGP routing table entries examined:                                5582
    Prefixes after maximum aggregation (per Origin AS):            4019
    Deaggregation factor:                                          1.39
    Unique aggregates announced (without unneeded subnets):        4238
    Number of IPv4 prefixes with a valid ROA:                      2334
    Number of IPv4 prefixes with an invalid ROA:                      1
    Number of IPv4 prefixes with no ROA:                           3247
Total ASes present in the Internet Routing Table:                   966
    Prefixes per ASN:                                              5.78
Origin-only ASes present in the Internet Routing Table:             838
Origin ASes announcing only one prefix:                             434
Transit ASes present in the Internet Routing Table:                 128
Transit-only ASes present in the Internet Routing Table:             17
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 20537)                               9
Prefixes from unregistered ASNs in the Routing Table:                 0
    Number of instances of unregistered ASNs:                         0
Number of 32-bit ASNs allocated by the RIRs:                      41187
Number of 32-bit ASNs visible in the Routing Table:                 238
Prefixes from 32-bit ASNs in the Routing Table:                     570
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:                     77764608
    Equivalent to 4 /8s, 162 /16s and 152 /24s
    Percentage of available address space announced:                2.1
    Percentage of allocated address space announced:                2.1
    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:         883

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

Prefixes being announced by APNIC Region ASes:                     1626
    Total APNIC prefixes after maximum aggregation:                1089
    APNIC Deaggregation factor:                                    1.49
Prefixes being announced from the APNIC address blocks:            1627
    Unique aggregates announced from the APNIC address blocks:     1260
APNIC Region origin ASes present in the Internet Routing Table:     226
    APNIC Prefixes per ASN:                                        7.20
APNIC Region origin ASes announcing only one prefix:                106
APNIC Region transit ASes present in the Internet Routing Table:     12
Average APNIC Region AS path length visible:                        2.7
    Max APNIC Region AS path length visible:                          8
Number of APNIC region 32-bit ASNs visible in the Routing Table:     69
Number of APNIC addresses announced to Internet:               18579200
    Equivalent to 1 /8s, 27 /16s and 127 /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:                        82
    Total ARIN prefixes after maximum aggregation:                   30
    ARIN Deaggregation factor:                                     2.73
Prefixes being announced from the ARIN address blocks:               89
    Unique aggregates announced from the ARIN address blocks:        40
ARIN Region origin ASes present in the Internet Routing Table:       13
    ARIN Prefixes per ASN:                                         6.85
ARIN Region origin ASes announcing only one prefix:                   5
ARIN Region transit ASes present in the Internet Routing Table:       4
Average ARIN Region AS path length visible:                         3.5
    Max ARIN Region AS path length visible:                           6
Number of ARIN region 32-bit ASNs visible in the Routing Table:       2
Number of ARIN addresses announced to Internet:                  530944
    Equivalent to 0 /8s, 8 /16s and 26 /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:                 2827
    RIPE Deaggregation factor:                                     1.19
Prefixes being announced from the RIPE address blocks:             3359
    Unique aggregates announced from the RIPE address blocks:      2840
RIPE Region origin ASes present in the Internet Routing Table:      662
    RIPE Prefixes per ASN:                                         5.07
RIPE Region origin ASes announcing only one prefix:                 296
RIPE Region transit ASes present in the Internet Routing Table:      96
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:     140
Number of RIPE addresses announced to Internet:                57758208
    Equivalent to 3 /8s, 113 /16s and 82 /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:                       2
    Total LACNIC prefixes after maximum aggregation:                  2
    LACNIC Deaggregation factor:                                   1.00
Prefixes being announced from the LACNIC address blocks:              2
    Unique aggregates announced from the LACNIC address blocks:       2
LACNIC Region origin ASes present in the Internet Routing Table:      2
    LACNIC Prefixes per ASN:                                       1.00
LACNIC Region origin ASes announcing only one prefix:                 2
LACNIC Region transit ASes present in the Internet Routing Table:     0
Average LACNIC Region AS path length visible:                       5.5
    Max LACNIC Region AS path length visible:                         6
Number of LACNIC region 32-bit ASNs visible in the Routing Table:     0
Number of LACNIC addresses announced to Internet:                   512
    Equivalent to 0 /8s, 0 /16s and 2 /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:                    504
    Total AfriNIC prefixes after maximum aggregation:                71
    AfriNIC Deaggregation factor:                                  7.10
Prefixes being announced from the AfriNIC address blocks:           504
    Unique aggregates announced from the AfriNIC address blocks:     95
AfriNIC Region origin ASes present in the Internet Routing Table:    46
    AfriNIC Prefixes per ASN:                                     10.96
AfriNIC Region origin ASes announcing only one prefix:               25
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:                       14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   27
Number of AfriNIC addresses announced to Internet:               895488
    Equivalent to 0 /8s, 13 /16s and 170 /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         577       2140     460  SINET-AS Research Organization of Infor
 58647         177         18       2  KAGAWAU-AS Kagawa University, JP
  7575         171        329     119  AARNET-AS-AP Australian Academic and Re
 23767          30          3      10  A-STAR-AS-AP A-STAR, SG
134096          27          3      18  EHEALTHNSW-AS-AP eHealth NSW, AU
 24436          23         27      19  UQ-AS-AP University of Queensland, AU
  6262          22        128      17  CSIRO Commonwealth Scientific and Indus
 10148          19         20      18  UNIMELB-AS-AP The University of Melbour
 38022          18          3      13  REANNZ-NZ-AP REANNZ National Research a
  2506          16         52       6  SUPERCSI NTT WEST CHUGOKU CORPORATION, 

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  6360          54         62       7  UNIVHAWAII, US
   668           7          1       6  DNIC-AS-00668, US
395400           4         16       2  UNIVERSITY-GUAM, GU
 26100           3          1       3  NOAA-PACIFIC-REGION-CENTER, US
 36599           3          0       2  SOFTETHER-AMERICA, US
   112           2          0       2  UNASSIGNED
 20144           2          0       1  IMRS, US
396690           2          0       2  VRSN-AC50-340, US
  2534           1          0       1  ROCHE-RSN, US
  5663           1          0       1  EDCNET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         281       1919     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1775     183  JANET Jisc Services Limited, GB
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          96       1518      85  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      75  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
   553          73        449      73  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
  3267          56         63      41  RUNNET, RU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 10906           1          0       1  Nucleo de Inf. e Coord. do Ponto BR - N
 14650           1          0       1  Nucleo de Inf. e Coord. do Ponto BR - N

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         252         82       3  KENET-AS, KE
327687          43         28       3  RENU, UG
  3208          32          2       1  ARN, DZ
327700          32         16       1  MoRENet, MZ
 37182          31          8       1  TERNET, TZ
  6879          24          2       9  ENSTINET-, EG
 37074          13          8       2  UG-AS, GH
 37654          10          1       6  RwEdNet-AS, RW
  2561           7          0       5  EUN, EG
 37215           5          8       1  MAREN, MW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         577       2140     460  SINET-AS Research Organization of Infor
   680         281       1919     249  DFN Verein zur Foerderung eines Deutsch
 36914         252         82       3  KENET-AS, KE
   786         186       1775     183  JANET Jisc Services Limited, GB
 58647         177         18       2  KAGAWAU-AS Kagawa University, JP
  7575         171        329     119  AARNET-AS-AP Australian Academic and Re
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          96       1518      85  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      75  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT

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

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

   ASN  No of nets  Net Savings  Description
 36914         252          249  KENET-AS, KE
 58647         177          175  KAGAWAU-AS Kagawa University, JP
  7575         171           52  AARNET-AS-AP Australian Academic and Research N
  6360          54           47  UNIVHAWAII, US
327687          43           40  RENU, UG
200521          54           33  SEAP-AGE, ES
   680         281           32  DFN Verein zur Foerderung eines Deutschen Forsc
  3208          32           31  ARN, DZ
327700          32           31  MoRENet, MZ
 37182          31           30  TERNET, TZ

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

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/SingAREN/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        /9:0       /10:0       /11:0       /12:3       
/13:2       /14:9       /15:50      /16:887     /17:123     /18:100     
/19:169     /20:230     /21:318     /22:509     /23:506     /24:2676    
/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         239         252  KENET-AS, KE
200521          31          54  SEAP-AGE, ES
 37182          30          31  TERNET, TZ
327700          27          32  MoRENet, MZ
  3267          21          56  RUNNET, RU
 31638          21          21  ASN-LEPIDA, IT
  3233          20          30  ICI-ROTLD Romanian National R&D Network, RO
  2614          17          95  ROEDUNET, RO
 28949          15          15  TUSNET-AS 8, Kliment Ohridski St., BG
 60187          14          35  LGFL-AS, GB

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

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

   5:15       24:2        31:7        41:139      44:4        45:11     
  46:5        49:4        62:9        77:9        78:3        79:10     
  80:17       81:28       82:6        83:6        84:11       85:42     
  86:2        87:1        89:10       91:37       92:2        93:4      
  94:4        95:2       102:14      103:79      109:4       123:8      
 125:1       128:35      129:7       130:5       131:15      132:6      
 133:149     134:6       136:1       137:25      138:8       140:5      
 143:7       145:2       146:2       147:4       148:6       150:5      
 151:2       152:4       153:12      154:6       155:4       156:8      
 157:2       159:1       160:26      161:4       163:19      171:1      
 180:2       185:43      188:13      192:601     193:304     194:144    
 195:66      196:14      197:155     199:2       200:2       202:221    
 203:166     205:3       210:3       212:43      213:5       217:11     
 219:5      

End of report


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