[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 15 18:02:11 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
UKNOF, 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 16 Sep, 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: 929061
Prefixes after maximum aggregation (per Origin AS): 352948
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 453321
Total ASes present in the Internet Routing Table: 74787
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 64210
Origin ASes announcing only one prefix: 26341
Transit ASes present in the Internet Routing Table: 10577
Transit-only ASes present in the Internet Routing Table: 460
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 70
Max AS path prepend of ASN (263725) 64
Prefixes from unregistered ASNs in the Routing Table: 1048
Number of instances of unregistered ASNs: 1054
Number of 32-bit ASNs allocated by the RIRs: 42618
Number of 32-bit ASNs visible in the Routing Table: 35072
Prefixes from 32-bit ASNs in the Routing Table: 175382
Number of bogon 32-bit ASNs visible in the Routing Table: 64
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 589
Number of addresses announced to Internet: 3055181440
Equivalent to 182 /8s, 26 /16s and 94 /24s
Percentage of available address space announced: 82.5
Percentage of allocated address space announced: 82.5
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: 309004
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246515
Total APNIC prefixes after maximum aggregation: 70837
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 240162
Unique aggregates announced from the APNIC address blocks: 98777
APNIC Region origin ASes present in the Internet Routing Table: 13638
APNIC Prefixes per ASN: 17.61
APNIC Region origin ASes announcing only one prefix: 4057
APNIC Region transit ASes present in the Internet Routing Table: 1813
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8965
Number of APNIC addresses announced to Internet: 772820352
Equivalent to 46 /8s, 16 /16s and 77 /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: 272245
Total ARIN prefixes after maximum aggregation: 123762
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 275330
Unique aggregates announced from the ARIN address blocks: 131685
ARIN Region origin ASes present in the Internet Routing Table: 19089
ARIN Prefixes per ASN: 14.42
ARIN Region origin ASes announcing only one prefix: 6941
ARIN Region transit ASes present in the Internet Routing Table: 1957
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: 4820
Number of ARIN addresses announced to Internet: 1278924288
Equivalent to 76 /8s, 58 /16s and 214 /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: 260909
Total RIPE prefixes after maximum aggregation: 123251
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256571
Unique aggregates announced from the RIPE address blocks: 160283
RIPE Region origin ASes present in the Internet Routing Table: 28388
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12040
RIPE Region transit ASes present in the Internet Routing Table: 3940
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11322
Number of RIPE addresses announced to Internet: 716908288
Equivalent to 42 /8s, 187 /16s and 39 /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: 118384
Total LACNIC prefixes after maximum aggregation: 28439
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117347
Unique aggregates announced from the LACNIC address blocks: 49224
LACNIC Region origin ASes present in the Internet Routing Table: 11023
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2686
LACNIC Region transit ASes present in the Internet Routing Table: 2322
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 70
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8838
Number of LACNIC addresses announced to Internet: 178337536
Equivalent to 10 /8s, 161 /16s and 55 /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: 29960
Total AfriNIC prefixes after maximum aggregation: 5944
AfriNIC Deaggregation factor: 5.04
Prefixes being announced from the AfriNIC address blocks: 39062
Unique aggregates announced from the AfriNIC address blocks: 12862
AfriNIC Region origin ASes present in the Internet Routing Table: 1787
AfriNIC Prefixes per ASN: 21.86
AfriNIC Region origin ASes announcing only one prefix: 617
AfriNIC Region transit ASes present in the Internet Routing Table: 335
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1127
Number of AfriNIC addresses announced to Internet: 107736576
Equivalent to 6 /8s, 107 /16s and 238 /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 9487 8729 41 CHINAMOBILE-CN China Mobile Communicati
7545 5729 785 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4260 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3565 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3323 1824 97 VNPT-AS-VN VNPT Corp, VN
9498 3150 498 251 BBIL-AP BHARTI Airtel Ltd., IN
7552 2929 1330 20 VIETEL-AS-AP Viettel Group, VN
4766 2543 11270 601 KIXS-AS-KR Korea Telecom, KR
24560 2514 849 387 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
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 9084 10996 3241 AMAZON-02, US
11492 4527 300 671 CABLEONE, US
7155 4179 288 101 VIASAT-SP-BACKBONE, US
22773 3547 3056 304 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3540 1319 66 SHAW, CA
749 3151 54959 2403 DNIC-AS-00749, US
16625 3019 1445 2288 AKAMAI-AS, US
367 2969 3831 1403 DNIC-ASBLK-00306-00371, US
396982 2698 3597 392 GOOGLE-CLOUD-PLATFORM, US
30036 2499 357 359 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 7385 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4078 3398 153 AKAMAI-ASN1, NL
8551 3449 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2981 2296 914 ROSTELECOM-AS, RU
9009 2725 254 1395 M247, RO
34984 2329 362 597 TELLCOM-AS, TR
58224 1732 922 532 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1492 100 1159 ASDETUK www.heficed.com, US
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 11813 3367 596 UNINET, MX
10620 3542 506 851 Telmex Colombia S.A., CO
13999 2389 331 622 Mega Cable, S.A. de C.V., MX
11830 2002 369 64 Instituto Costarricense de Electricidad
28573 1325 2324 232 Claro NXT Telecomunicacoes Ltda, BR
6503 1302 344 510 Axtel, S.A.B. de C.V., MX
3816 1295 764 191 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1123 182 425 Techtel LMDS Comunicaciones Interactiva
6147 1114 370 22 Telefonica del Peru S.A.A., PE
26615 1029 2501 49 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 1605 393 19 LINKdotNET-AS, EG
24835 1533 549 28 RAYA-AS, EG
36992 1358 1518 279 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1046 67 45 ORANGE-COTE-IVOIRE, CI
36935 920 520 35 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 531 55 50 WANANCHI-, KE
37342 490 32 1 MOVITEL, MZ
24757 482 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 11813 3367 596 UNINET, MX
9808 9487 8729 41 CHINAMOBILE-CN China Mobile Communicati
16509 9084 10996 3241 AMAZON-02, US
12479 7385 1713 145 UNI2-AS, ES
7545 5729 785 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4897 290 61 ALJAWWALSTC-AS, SA
11492 4527 300 671 CABLEONE, US
18403 4260 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4179 288 101 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9487 9446 CHINAMOBILE-CN China Mobile Communications Grou
12479 7385 7240 UNI2-AS, ES
16509 9084 5843 AMAZON-02, US
7545 5729 5038 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4863 ERX-CERNET-BKB China Education and Research Net
39891 4897 4836 ALJAWWALSTC-AS, SA
18403 4260 4235 FPT-AS-AP FPT Telecom Company, VN
7155 4179 4078 VIASAT-SP-BACKBONE, US
20940 4078 3925 AKAMAI-ASN1, NL
11492 4527 3856 CABLEONE, US
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
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
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, 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 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
23.140.216.0/24 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
23.176.160.0/24 Origin: 397327 RESERVED, ZZ
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road,
36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin
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 /11:101 /12:297
/13:578 /14:1197 /15:2069 /16:13520 /17:8285 /18:13870
/19:25148 /20:44402 /21:51212 /22:110196 /23:99117 /24:558255
/25:745 /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 6471 7385 UNI2-AS, ES
8151 5848 11813 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3439 4527 CABLEONE, US
6327 3350 3540 SHAW, CA
7155 3124 4179 VIASAT-SP-BACKBONE, US
8551 2922 3449 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2594 3547 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2158 2499 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2105 3542 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2236 2:1428 3:263 4:5 5:4516 6:135
7:6 8:1542 9:1 11:172 12:1516 13:364
14:2323 15:302 16:196 17:369 18:644 20:286
21:4 22:188 23:6372 24:2501 25:2 27:2521
29:19 31:2524 32:79 34:26 35:117 36:1991
37:4533 38:5229 39:870 40:146 41:4019 42:2086
43:2298 44:320 45:16590 46:4298 47:374 49:1837
50:1887 51:597 52:1595 54:396 55:956 56:5
57:122 58:1873 59:1182 60:1002 61:2513 62:2677
63:1915 64:5635 65:2356 66:4926 67:3030 68:1343
69:4150 70:1194 71:661 72:2958 74:2609 75:1561
76:623 77:2296 78:1831 79:2986 80:2111 81:1807
82:1462 83:1292 84:1539 85:3056 86:766 87:1999
88:1169 89:3885 90:621 91:7823 92:2063 93:2622
94:3520 95:4013 96:1298 97:316 98:1082 99:736
100:90 101:1079 102:2883 103:32017 104:4614 105:561
106:901 107:2683 108:1130 109:4224 110:2128 111:3195
112:2071 113:1820 114:1673 115:1986 116:1904 117:2456
118:2681 119:1986 120:1803 121:1182 122:2600 123:2194
124:1625 125:2551 128:1463 129:930 130:1043 131:1951
132:818 133:408 134:1798 135:305 136:909 137:971
138:2627 139:1583 140:1187 141:1311 142:1515 143:1514
144:1005 145:348 146:1949 147:1593 148:2455 149:2263
150:875 151:1232 152:1872 153:523 154:5173 155:1390
156:1956 157:1324 158:1061 159:2247 160:2584 161:1583
162:3534 163:1602 164:1700 165:1840 166:1077 167:1732
168:3739 169:902 170:4654 171:904 172:3719 173:2965
174:981 175:1194 176:3775 177:4430 178:3509 179:2154
180:2477 181:3514 182:3365 183:1981 184:2286 185:20536
186:4643 187:4177 188:4165 189:3848 190:9208 191:1379
192:10971 193:8968 194:7303 195:5222 196:3119 197:2495
198:6007 199:6129 200:7946 201:6028 202:10550 203:10004
204:4560 205:3689 206:4371 207:3494 208:4159 209:4937
210:4489 211:2532 212:4241 213:3409 214:1091 215:58
216:6704 217:2780 218:1301 219:576 220:2033 221:982
222:845 223:2162
End of report
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