[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 18 18:03:01 UTC 2022
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 19 Mar, 2022
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: 893722
Prefixes after maximum aggregation (per Origin AS): 336639
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 429362
Total ASes present in the Internet Routing Table: 72897
Prefixes per ASN: 12.26
Origin-only ASes present in the Internet Routing Table: 62565
Origin ASes announcing only one prefix: 25680
Transit ASes present in the Internet Routing Table: 10332
Transit-only ASes present in the Internet Routing Table: 379
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 912
Number of instances of unregistered ASNs: 921
Number of 32-bit ASNs allocated by the RIRs: 38812
Number of 32-bit ASNs visible in the Routing Table: 32314
Prefixes from 32-bit ASNs in the Routing Table: 151357
Number of bogon 32-bit ASNs visible in the Routing Table: 32
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 510
Number of addresses announced to Internet: 3068411904
Equivalent to 182 /8s, 228 /16s and 64 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
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: 303150
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233925
Total APNIC prefixes after maximum aggregation: 66327
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 228912
Unique aggregates announced from the APNIC address blocks: 94588
APNIC Region origin ASes present in the Internet Routing Table: 12486
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 3554
APNIC Region transit ASes present in the Internet Routing Table: 1720
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7686
Number of APNIC addresses announced to Internet: 774245760
Equivalent to 46 /8s, 38 /16s and 13 /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: 260871
Total ARIN prefixes after maximum aggregation: 119697
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 260758
Unique aggregates announced from the ARIN address blocks: 124070
ARIN Region origin ASes present in the Internet Routing Table: 18990
ARIN Prefixes per ASN: 13.73
ARIN Region origin ASes announcing only one prefix: 6894
ARIN Region transit ASes present in the Internet Routing Table: 1964
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4399
Number of ARIN addresses announced to Internet: 1295848960
Equivalent to 77 /8s, 61 /16s and 22 /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: 256192
Total RIPE prefixes after maximum aggregation: 117094
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 253439
Unique aggregates announced from the RIPE address blocks: 150184
RIPE Region origin ASes present in the Internet Routing Table: 28118
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12042
RIPE Region transit ASes present in the Internet Routing Table: 3970
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10664
Number of RIPE addresses announced to Internet: 714103680
Equivalent to 42 /8s, 144 /16s and 91 /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: 114231
Total LACNIC prefixes after maximum aggregation: 27446
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114217
Unique aggregates announced from the LACNIC address blocks: 48188
LACNIC Region origin ASes present in the Internet Routing Table: 10929
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2627
LACNIC Region transit ASes present in the Internet Routing Table: 2203
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8619
Number of LACNIC addresses announced to Internet: 176277248
Equivalent to 10 /8s, 129 /16s and 199 /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: 27591
Total AfriNIC prefixes after maximum aggregation: 5397
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 35886
Unique aggregates announced from the AfriNIC address blocks: 11899
AfriNIC Region origin ASes present in the Internet Routing Table: 1613
AfriNIC Prefixes per ASN: 22.25
AfriNIC Region origin ASes announcing only one prefix: 563
AfriNIC Region transit ASes present in the Internet Routing Table: 319
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 946
Number of AfriNIC addresses announced to Internet: 107632640
Equivalent to 6 /8s, 106 /16s and 88 /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 9117 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5894 788 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3602 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3487 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3435 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2499 11121 602 KIXS-AS-KR Korea Telecom, KR
9498 2386 475 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2146 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2109 429 197 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 6301 10248 2649 AMAZON-02, US
11492 4455 295 726 CABLEONE, US
22773 3944 3060 368 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3895 263 26 VIASAT-SP-BACKBONE, US
16625 3654 1883 2572 AKAMAI-AS, US
6327 3412 1318 62 SHAW, CA
749 2883 50780 2139 DNIC-AS-00749, US
30036 2612 374 163 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2518 4962 428 CENTURYLINK-US-LEGACY-QWEST, US
20115 2255 3042 499 CHARTER-20115, 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 6817 1730 149 UNI2-AS, ES
9121 6703 1692 17 TTNET, TR
8551 4012 378 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3945 3349 220 AKAMAI-ASN1, NL
39891 3818 220 33 ALJAWWALSTC-AS, SA
12389 2959 2274 909 ROSTELECOM-AS, RU
6849 2803 355 21 UKRTELNET, UA
9009 2468 248 1285 M247, GB
34984 2198 355 622 TELLCOM-AS, TR
47331 2087 329 1597 TTNET, TR
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 10485 3427 552 Uninet S.A. de C.V., MX
10620 3473 519 715 Telmex Colombia S.A., CO
11830 2431 369 62 Instituto Costarricense de Electricidad
13999 1709 292 474 Mega Cable, S.A. de C.V., MX
6503 1446 354 524 Axtel, S.A.B. de C.V., MX
28573 1396 2332 248 CLARO S.A., BR
3816 1254 666 146 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1091 370 21 Telefonica del Peru S.A.A., PE
26615 1047 2349 136 TIM SA, BR
11664 1008 192 446 Techtel LMDS Comunicaciones Interactiva
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 1584 393 21 LINKdotNET-AS, EG
24835 1545 523 32 RAYA-AS, EG
36992 1300 1518 262 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 908 64 62 ORANGE-COTE-IVOIRE, CI
36935 729 521 40 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 514 51 34 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
23889 422 232 16 MauritiusTelecom, MU
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 10485 3427 552 Uninet S.A. de C.V., MX
9808 9117 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6817 1730 149 UNI2-AS, ES
9121 6703 1692 17 TTNET, TR
16509 6301 10248 2649 AMAZON-02, US
7545 5894 788 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4455 295 726 CABLEONE, US
8551 4012 378 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3945 3349 220 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9117 9071 CHINAMOBILE-CN China Mobile Communications Grou
9121 6703 6686 TTNET, TR
12479 6817 6668 UNI2-AS, ES
7545 5894 5197 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4708 4634 ERX-CERNET-BKB China Education and Research Net
8551 4012 3974 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3895 3869 VIASAT-SP-BACKBONE, US
39891 3818 3785 ALJAWWALSTC-AS, SA
11492 4455 3729 CABLEONE, US
20940 3945 3725 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
398083 UNALLOCATED 5.104.72.0/24 399587 UT, US
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, 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
23.133.168.0/24 Origin: 400442 VULPINE-AS-01, CA
23.133.168.0/24 Transit: 21700 NEPTUNE-NETWORKS, US
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
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 /9:13 /10:40 /11:102 /12:305
/13:588 /14:1205 /15:2042 /16:13573 /17:8317 /18:13893
/19:25167 /20:43310 /21:52283 /22:108378 /23:95482 /24:528212
/25:796 /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
9121 5850 6703 TTNET, TR
12479 5794 6817 UNI2-AS, ES
8151 4140 10485 Uninet S.A. de C.V., MX
8551 3477 4012 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3368 4455 CABLEONE, US
6327 3224 3412 SHAW, CA
39891 3130 3818 ALJAWWALSTC-AS, SA
7155 2988 3895 VIASAT-SP-BACKBONE, US
22773 2935 3944 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2658 2803 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1841 2:1064 3:154 4:7 5:3782 6:112
7:5 8:1563 9:1 11:172 12:1714 13:303
14:2389 15:179 16:42 17:375 18:147 20:194
21:4 22:188 23:5542 24:2342 25:6 27:2605
29:19 31:2418 32:96 34:1 35:66 36:1751
37:4387 38:2651 39:699 40:150 41:3914 42:999
43:2093 44:292 45:16077 46:4124 47:348 49:1667
50:1937 51:107 52:1373 53:1 54:358 55:772
56:8 57:58 58:1807 59:1198 60:966 61:2270
62:2462 63:1942 64:5523 65:2308 66:4864 67:2965
68:1174 69:4155 70:1350 71:660 72:3076 74:2669
75:1423 76:716 77:2104 78:3888 79:3098 80:1960
81:1700 82:1479 83:1216 84:1344 85:3644 86:719
87:1969 88:2674 89:3242 90:514 91:7611 92:2011
93:2592 94:3491 95:4763 96:1310 97:347 98:988
99:865 100:75 101:1035 102:1983 103:28696 104:4274
105:469 106:853 107:2505 108:795 109:4214 110:2073
111:3286 112:2008 113:1525 114:1490 115:1958 116:1905
117:2515 118:2271 119:1866 120:1673 121:1062 122:2550
123:2116 124:1612 125:2110 128:1176 129:1195 130:916
131:2072 132:760 133:373 134:1935 135:290 136:878
137:874 138:2431 139:1270 140:1132 141:1378 142:1283
143:1478 144:1238 145:345 146:1776 147:1483 148:2208
149:1635 150:855 151:1077 152:1825 153:458 154:3669
155:1444 156:1897 157:1237 158:1028 159:2075 160:2421
161:1322 162:3452 163:1229 164:1653 165:1605 166:682
167:1718 168:3757 169:698 170:4448 171:821 172:3056
173:3075 174:1022 175:1128 176:3508 177:4565 178:3443
179:1975 180:2274 181:2941 182:3260 183:1946 184:2388
185:19422 186:4324 187:3667 188:3864 189:3088 190:8847
191:1307 192:11068 193:8562 194:6964 195:4967 196:2937
197:2356 198:6015 199:6035 200:7514 201:5670 202:10508
203:10028 204:4548 205:3380 206:3759 207:3400 208:4038
209:4640 210:4258 211:2436 212:3997 213:3391 214:1162
215:67 216:6427 217:2639 218:1257 219:597 220:1950
221:983 222:849 223:2140
End of report
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