[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 28 18:03:41 UTC 2023
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
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 29 Apr, 2023
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: 920274
Prefixes after maximum aggregation (per Origin AS): 349049
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 449049
Total ASes present in the Internet Routing Table: 74365
Prefixes per ASN: 12.38
Origin-only ASes present in the Internet Routing Table: 63787
Origin ASes announcing only one prefix: 26221
Transit ASes present in the Internet Routing Table: 10578
Transit-only ASes present in the Internet Routing Table: 435
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1078
Number of instances of unregistered ASNs: 1078
Number of 32-bit ASNs allocated by the RIRs: 41758
Number of 32-bit ASNs visible in the Routing Table: 34510
Prefixes from 32-bit ASNs in the Routing Table: 170749
Number of bogon 32-bit ASNs visible in the Routing Table: 13
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 635
Number of addresses announced to Internet: 3060323968
Equivalent to 182 /8s, 104 /16s and 214 /24s
Percentage of available address space announced: 82.7
Percentage of allocated address space announced: 82.7
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: 307168
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 243681
Total APNIC prefixes after maximum aggregation: 69357
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 237917
Unique aggregates announced from the APNIC address blocks: 97908
APNIC Region origin ASes present in the Internet Routing Table: 13396
APNIC Prefixes per ASN: 17.76
APNIC Region origin ASes announcing only one prefix: 3929
APNIC Region transit ASes present in the Internet Routing Table: 1802
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8699
Number of APNIC addresses announced to Internet: 773438208
Equivalent to 46 /8s, 25 /16s and 187 /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: 269219
Total ARIN prefixes after maximum aggregation: 122319
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 271854
Unique aggregates announced from the ARIN address blocks: 131001
ARIN Region origin ASes present in the Internet Routing Table: 19089
ARIN Prefixes per ASN: 14.24
ARIN Region origin ASes announcing only one prefix: 6963
ARIN Region transit ASes present in the Internet Routing Table: 1964
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4790
Number of ARIN addresses announced to Internet: 1283916288
Equivalent to 76 /8s, 135 /16s and 2 /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: 259353
Total RIPE prefixes after maximum aggregation: 122220
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 255356
Unique aggregates announced from the RIPE address blocks: 158069
RIPE Region origin ASes present in the Internet Routing Table: 28321
RIPE Prefixes per ASN: 9.02
RIPE Region origin ASes announcing only one prefix: 12059
RIPE Region transit ASes present in the Internet Routing Table: 3972
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11156
Number of RIPE addresses announced to Internet: 717996416
Equivalent to 42 /8s, 203 /16s and 193 /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: 117852
Total LACNIC prefixes after maximum aggregation: 28563
LACNIC Deaggregation factor: 4.13
Prefixes being announced from the LACNIC address blocks: 117112
Unique aggregates announced from the LACNIC address blocks: 49293
LACNIC Region origin ASes present in the Internet Routing Table: 10991
LACNIC Prefixes per ASN: 10.66
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2306
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8779
Number of LACNIC addresses announced to Internet: 176720384
Equivalent to 10 /8s, 136 /16s and 138 /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: 29091
Total AfriNIC prefixes after maximum aggregation: 5811
AfriNIC Deaggregation factor: 5.01
Prefixes being announced from the AfriNIC address blocks: 37400
Unique aggregates announced from the AfriNIC address blocks: 12252
AfriNIC Region origin ASes present in the Internet Routing Table: 1739
AfriNIC Prefixes per ASN: 21.51
AfriNIC Region origin ASes announcing only one prefix: 616
AfriNIC Region transit ASes present in the Internet Routing Table: 333
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1086
Number of AfriNIC addresses announced to Internet: 107835136
Equivalent to 6 /8s, 109 /16s and 111 /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 9483 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5730 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
45899 4054 1877 47 VNPT-AS-VN VNPT Corp, VN
7713 3547 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3227 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 2942 489 234 BBIL-AP BHARTI Airtel Ltd., IN
4766 2537 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2386 837 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
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 8232 10772 2936 AMAZON-02, US
11492 4545 301 593 CABLEONE, US
7155 3975 281 51 VIASAT-SP-BACKBONE, US
22773 3588 3057 284 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3523 1320 64 SHAW, CA
16625 3171 1584 2361 AKAMAI-AS, US
749 3071 53111 2323 DNIC-AS-00749, US
396982 2635 3590 366 GOOGLE-CLOUD-PLATFORM, US
7018 2516 24151 1575 ATT-INTERNET4, US
30036 2501 361 449 MEDIACOM-ENTERPRISE-BUSINESS, 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 7270 1706 140 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4080 3399 164 AKAMAI-ASN1, NL
8551 3889 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2951 2292 909 ROSTELECOM-AS, RU
9009 2668 249 1400 M247, RO
34984 2276 359 613 TELLCOM-AS, TR
6849 2018 307 18 UKRTELNET, UA
58224 1852 950 544 TCI, IR
13188 1607 100 18 TRIOLAN, UA
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 11251 3343 591 Uninet S.A. de C.V., MX
10620 3479 505 906 Telmex Colombia S.A., CO
13999 2334 358 617 Mega Cable, S.A. de C.V., MX
11830 2263 369 64 Instituto Costarricense de Electricidad
28573 1333 2324 240 Claro NXT Telecomunicacoes Ltda, BR
6503 1299 339 514 Axtel, S.A.B. de C.V., MX
3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1132 370 22 Telefonica del Peru S.A.A., PE
11664 1099 180 444 Techtel LMDS Comunicaciones Interactiva
26615 1035 2498 45 TIM SA, BR
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
24863 1585 393 19 LINKdotNET-AS, EG
24835 1553 533 30 RAYA-AS, EG
36992 1338 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1024 67 46 ORANGE-COTE-IVOIRE, CI
36935 875 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 529 54 48 WANANCHI-, KE
37342 491 32 1 MOVITEL, MZ
24757 489 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 11251 3343 591 Uninet S.A. de C.V., MX
9808 9483 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8232 10772 2936 AMAZON-02, US
12479 7270 1706 140 UNI2-AS, ES
7545 5730 787 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4545 301 593 CABLEONE, US
20940 4080 3399 164 AKAMAI-ASN1, NL
45899 4054 1877 47 VNPT-AS-VN VNPT Corp, 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 9483 9443 CHINAMOBILE-CN China Mobile Communications Grou
12479 7270 7130 UNI2-AS, ES
16509 8232 5296 AMAZON-02, US
7545 5730 5037 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4863 4788 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
45899 4054 4007 VNPT-AS-VN VNPT Corp, VN
11492 4545 3952 CABLEONE, US
7155 3975 3924 VIASAT-SP-BACKBONE, US
20940 4080 3916 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
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
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 LIGHTOWER, US
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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
23.131.185.0/24 Origin: 174 COGENT-174, US
23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.186.0/24 Origin: 174 COGENT-174, US
23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.187.0/24 Origin: 174 COGENT-174, US
23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.188.0/24 Origin: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.139.232.0/24 Origin: 211619 MAXKO, HR
23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov
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 /10:39 /11:103 /12:298
/13:578 /14:1195 /15:2046 /16:13453 /17:8234 /18:14280
/19:25215 /20:44283 /21:51252 /22:109692 /23:97666 /24:551168
/25:742 /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 6330 7270 UNI2-AS, ES
8151 5196 11251 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3454 4545 CABLEONE, US
8551 3361 3889 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3332 3523 SHAW, CA
7155 3042 3975 VIASAT-SP-BACKBONE, US
22773 2652 3588 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2158 2501 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2034 3479 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1821 2:1290 3:175 4:5 5:4516 6:128
7:6 8:1548 9:1 11:172 12:1535 13:380
14:2340 15:299 16:182 17:371 18:417 20:256
21:4 22:188 23:6246 24:2594 25:6 27:2459
29:19 31:2493 32:81 34:12 35:109 36:1939
37:4658 38:4467 39:822 40:151 41:3932 42:1231
43:2345 44:307 45:16532 46:4291 47:363 49:1758
50:1844 51:573 52:1592 54:390 55:858 56:8
57:112 58:1780 59:1152 60:990 61:2453 62:2663
63:1925 64:5669 65:2331 66:4995 67:3007 68:1352
69:4130 70:1235 71:671 72:2983 74:2612 75:1447
76:615 77:2441 78:1815 79:3173 80:2109 81:1762
82:1488 83:1278 84:1531 85:2985 86:764 87:2011
88:1169 89:3668 90:613 91:7740 92:2064 93:2627
94:3604 95:3999 96:1321 97:335 98:1153 99:746
100:73 101:1077 102:2629 103:31289 104:4628 105:488
106:948 107:2524 108:1030 109:4421 110:2090 111:3137
112:2036 113:1645 114:1651 115:2016 116:1923 117:2534
118:2381 119:2017 120:1794 121:1112 122:2593 123:2216
124:1614 125:2500 128:1377 129:1064 130:1020 131:1996
132:814 133:422 134:1904 135:303 136:878 137:944
138:2556 139:1574 140:1250 141:1464 142:1443 143:1501
144:1164 145:348 146:1942 147:1574 148:2353 149:2208
150:876 151:1158 152:1817 153:490 154:4443 155:1436
156:1784 157:1305 158:1064 159:2306 160:2544 161:1531
162:3516 163:1522 164:1617 165:1715 166:1040 167:1725
168:3857 169:943 170:4585 171:874 172:3547 173:2937
174:1072 175:1177 176:3693 177:4599 178:3592 179:2152
180:2573 181:3434 182:3380 183:1975 184:2371 185:20183
186:4747 187:3967 188:4109 189:3562 190:9155 191:1438
192:10947 193:8876 194:7336 195:5161 196:3063 197:2356
198:5944 199:6103 200:8039 201:5875 202:10671 203:10238
204:4587 205:3672 206:4354 207:3458 208:4072 209:4860
210:4427 211:2498 212:4137 213:3586 214:1090 215:59
216:6636 217:2682 218:1294 219:577 220:2015 221:972
222:890 223:2185
End of report
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