[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Abr 5 15:02:13 -03 2024


This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats en lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 06 Apr, 2024

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              942084
    Prefixes after maximum aggregation (per Origin AS):          360114
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      459596
Total ASes present in the Internet Routing Table:                 75654
    Prefixes per ASN:                                             12.45
Origin-only ASes present in the Internet Routing Table:           64860
Origin ASes announcing only one prefix:                           26602
Transit ASes present in the Internet Routing Table:               10794
Transit-only ASes present in the Internet Routing Table:            512
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                     121
    Max AS path prepend of ASN (150315)                             116
Prefixes from unregistered ASNs in the Routing Table:              1086
    Number of instances of unregistered ASNs:                      1088
Number of 32-bit ASNs allocated by the RIRs:                      44026
Number of 32-bit ASNs visible in the Routing Table:               36188
Prefixes from 32-bit ASNs in the Routing Table:                  184039
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            619
Number of addresses announced to Internet:                   3027941504
    Equivalent to 180 /8s, 122 /16s and 184 /24s
    Percentage of available address space announced:               81.8
    Percentage of allocated address space announced:               81.8
    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:      310836

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

Prefixes being announced by APNIC Region ASes:                   249656
    Total APNIC prefixes after maximum aggregation:               73375
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          242199
    Unique aggregates announced from the APNIC address blocks:   100126
APNIC Region origin ASes present in the Internet Routing Table:   14077
    APNIC Prefixes per ASN:                                       17.21
APNIC Region origin ASes announcing only one prefix:               4259
APNIC Region transit ASes present in the Internet Routing Table:   1876
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                        121
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9461
Number of APNIC addresses announced to Internet:              760500096
    Equivalent to 45 /8s, 84 /16s and 79 /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:                    274690
    Total ARIN prefixes after maximum aggregation:               124280
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           279512
    Unique aggregates announced from the ARIN address blocks:    133350
ARIN Region origin ASes present in the Internet Routing Table:    19131
    ARIN Prefixes per ASN:                                        14.61
ARIN Region origin ASes announcing only one prefix:                6957
ARIN Region transit ASes present in the Internet Routing Table:    1988
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4874
Number of ARIN addresses announced to Internet:              1269403904
    Equivalent to 75 /8s, 169 /16s and 145 /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:                    264323
    Total RIPE prefixes after maximum aggregation:               126686
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           259065
    Unique aggregates announced from the RIPE address blocks:    163033
RIPE Region origin ASes present in the Internet Routing Table:    28624
    RIPE Prefixes per ASN:                                         9.05
RIPE Region origin ASes announcing only one prefix:               12140
RIPE Region transit ASes present in the Internet Routing Table:    3986
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11729
Number of RIPE addresses announced to Internet:               714691328
    Equivalent to 42 /8s, 153 /16s and 83 /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
                       196608-216475
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:                  121581
    Total LACNIC prefixes after maximum aggregation:              28909
    LACNIC Deaggregation factor:                                   4.21
Prefixes being announced from the LACNIC address blocks:         119873
    Unique aggregates announced from the LACNIC address blocks:   49537
LACNIC Region origin ASes present in the Internet Routing Table:  11074
    LACNIC Prefixes per ASN:                                      10.82
LACNIC Region origin ASes announcing only one prefix:              2599
LACNIC Region transit ASes present in the Internet Routing Table:  2389
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8933
Number of LACNIC addresses announced to Internet:             177207552
    Equivalent to 10 /8s, 143 /16s and 249 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                  30748
    Total AfriNIC prefixes after maximum aggregation:              6155
    AfriNIC Deaggregation factor:                                  5.00
Prefixes being announced from the AfriNIC address blocks:         40816
    Unique aggregates announced from the AfriNIC address blocks:  13064
AfriNIC Region origin ASes present in the Internet Routing Table:  1823
    AfriNIC Prefixes per ASN:                                     22.39
AfriNIC Region origin ASes announcing only one prefix:              647
AfriNIC Region transit ASes present in the Internet Routing Table:  357
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1191
Number of AfriNIC addresses announced to Internet:            105811968
    Equivalent to 6 /8s, 78 /16s and 144 /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
  9808        9842       8742      66  CHINAMOBILE-CN China Mobile Communicati
  7545        5655        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      76  ERX-CERNET-BKB China Education and Rese
  7552        3862       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3623       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3563        497     257  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3289       1872      98  VNPT-AS-VN VNPT Corp, VN
 24560        2772        864     363  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2309      11259     575  KIXS-AS-KR Korea Telecom, KR
  4755        2199        434     196  TATACOMM-AS TATA Communications formerl

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        9818      11370    3396  AMAZON-02, US
 11492        4600        305     612  CABLEONE, US
  7155        4170        287      89  VIASAT-SP-BACKBONE, US
  6327        3605       1320      75  SHAW, CA
 22773        3525       3046     240  ASN-CXA-ALL-CCI-22773-RDC, US
   174        3320       6631     827  COGENT-174, US
   749        3202      54912    2454  DNIC-AS-00749, US
 16625        3099       1322    2215  AKAMAI-AS, US
   367        2876       3553    1366  DNIC-ASBLK-00306-00371, US
396982        2765       3641     413  GOOGLE-CLOUD-PLATFORM, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        7664       1709     144  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3858       3396     128  AKAMAI-ASN1, NL
  9009        3268        283    1597  M247, RO
 12389        2979       2303     903  ROSTELECOM-AS, RU
  8551        2637        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2349        364     583  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
  8452        1528       1852      14  TE-AS TE-AS, EG
 44477        1512         99     719  STARK-INDUSTRIES, GB

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       12352       3314     487  UNINET, MX
 10620        3526        496     887  Telmex Colombia S.A., CO
 13999        2522        346     654  Mega Cable, S.A. de C.V., MX
 11830        2004        369      64  Instituto Costarricense de Electricidad
 28573        1342       2317     245  Claro NXT Telecomunicacoes Ltda, BR
  3816        1312        788     199  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1147        177     424  Techtel LMDS Comunicaciones Interactiva
  6503        1103        346     480  Axtel, S.A.B. de C.V., MX
  6147        1081        369      22  Telefonica del Peru S.A.A., PE
 22884        1072        114     377  TOTAL PLAY TELECOMUNICACIONES SA DE CV,

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24835        1549        545      28  RAYA-AS, EG
 24863        1502        389      20  LINKdotNET-AS, EG
 36992        1367       1519     283  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1159         75      74  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         553       1861      34  IAM-AS, MA
 15399         534         56      56  WANANCHI-, KE
 36914         484         82       3  KENET-AS, KE
 24757         429         73       5  EthioNet-AS, ET

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       12352       3314     487  UNINET, MX
  9808        9842       8742      66  CHINAMOBILE-CN China Mobile Communicati
 16509        9818      11370    3396  AMAZON-02, US
 12479        7664       1709     144  UNI2-AS, ES
  7545        5655        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      76  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4600        305     612  CABLEONE, US
  7155        4170        287      89  VIASAT-SP-BACKBONE, US
  7552        3862       1330      20  VIETEL-AS-AP Viettel Group, VN

Complete listing at https://thyme.apnic.net/current/data-ASnet

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

   ASN  No of nets  Net Savings  Description
  9808        9842         9776  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7664         7520  UNI2-AS, ES
 16509        9818         6422  AMAZON-02, US
  7545        5655         4981  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934         4858  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
  7155        4170         4081  VIASAT-SP-BACKBONE, US
 11492        4600         3988  CABLEONE, US
  7552        3862         3842  VIETEL-AS-AP Viettel Group, VN
 20940        3858         3730  AKAMAI-ASN1, NL

Complete listing at https://thyme.apnic.net/current/data-CIDRnet

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65536  DOCUMENT     5.102.30.0/24            65512  -Private Use AS-, ZZ
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     46639  UNALLOCATED  8.17.66.0/24               701  UUNET, US
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24             46887  CROWNCASTLE-AS46887, US
    396894  UNALLOCATED  8.28.201.0/24            46887  CROWNCASTLE-AS46887, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

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

Unassigned Network     ASN Information  AS Name
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
27.0.192.0/22        Origin:    138415  HENGDA-HK HENGDA NETWORK LIMITED, HK
27.0.192.0/22       Transit:     51847  NEAROUTE, HK
27.0.192.0/24        Origin:    138195  MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.192.0/24       Transit:      3786  LGDACOM LG DACOM Corporation, KR
27.0.193.0/24        Origin:    138195  MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.193.0/24       Transit:      3786  LGDACOM LG DACOM Corporation, KR

Complete listing at https://thyme.apnic.net/current/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        /8:16       /9:14      /10:37      /11:95      /12:297     
/13:583     /14:1195    /15:2072    /16:13290   /17:8241    /18:13732   
/19:24837   /20:43930   /21:51558   /22:111110  /23:98490   /24:571852  
/25:735     /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
 12479        6782        7664  UNI2-AS, ES
  8151        6377       12352  UNINET, MX
 11492        3513        4600  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3402        3605  SHAW, CA
  7155        3114        4170  VIASAT-SP-BACKBONE, US
 22773        2614        3525  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2142        2487  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2132        3526  Telmex Colombia S.A., CO
  8551        2113        2637  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

Complete listing at https://thyme.apnic.net/current/data-sXXas-nos

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

   1:1637      2:1488      3:321       4:6         5:4522      6:162    
   7:6         8:1512      9:1        11:172      12:1463     13:377    
  14:2397     15:318      16:209      17:368      18:758      20:358    
  21:4        22:188      23:6662     24:2718     25:2        27:2558   
  29:19       31:2681     32:49       34:60       35:126      36:2272   
  37:4460     38:7146     39:892      40:125      41:4078     42:982    
  43:2355     44:318      45:17011    46:4392     47:302      49:1945   
  50:1918     51:573      52:1586     54:307      55:996      56:5      
  57:167      58:1888     59:1245     60:1029     61:2589     62:2675   
  63:1892     64:5508     65:2314     66:4705     67:3064     68:1334   
  69:4103     70:1192     71:572      72:2903     74:2585     75:1548   
  76:630      77:2425     78:1845     79:2486     80:2188     81:1957   
  82:1547     83:1310     84:1650     85:3130     86:836      87:2271   
  88:1246     89:4025     90:680      91:8077     92:2197     93:2654   
  94:3670     95:4142     96:1307     97:314      98:1030     99:744    
 100:94      101:1180    102:3116    103:32536   104:4853    105:636    
 106:940     107:2739    108:1118    109:4069    110:2139    111:3273   
 112:2073    113:1592    114:1792    115:2013    116:1886    117:2618   
 118:2383    119:1964    120:1813    121:1326    122:2683    123:2230   
 124:1621    125:2884    126:32      128:1477    129:937     130:1105   
 131:1855    132:801     133:410     134:1720    135:316     136:941    
 137:1060    138:2838    139:1563    140:1387    141:1361    142:1592   
 143:1500    144:998     145:348     146:2049    147:1752    148:2473   
 149:2583    150:1034    151:1337    152:2006    153:523     154:6284   
 155:1427    156:2237    157:1696    158:1080    159:2322    160:2627   
 161:1637    162:3593    163:1718    164:1642    165:2131    166:1129   
 167:1779    168:3925    169:793     170:4760    171:1026    172:3823   
 173:3040    174:905     175:1202    176:3628    177:4720    178:3586   
 179:2264    180:2358    181:3662    182:3432    183:1803    184:2275   
 185:20694   186:4974    187:4499    188:4041    189:4130    190:9326   
 191:1504    192:10978   193:9048    194:7458    195:5270    196:3149   
 197:2344    198:6009    199:7552    200:8055    201:6292    202:10469  
 203:10186   204:4564    205:3759    206:4501    207:3490    208:4142   
 209:5044    210:4656    211:2582    212:4322    213:3385    214:1085   
 215:50      216:6778    217:2820    218:1362    219:581     220:2047   
 221:1034    222:881     223:2239   

End of report


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