[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 29 18:02:56 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 30 Apr, 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: 897578
Prefixes after maximum aggregation (per Origin AS): 338127
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 430737
Total ASes present in the Internet Routing Table: 73125
Prefixes per ASN: 12.27
Origin-only ASes present in the Internet Routing Table: 62761
Origin ASes announcing only one prefix: 25758
Transit ASes present in the Internet Routing Table: 10364
Transit-only ASes present in the Internet Routing Table: 368
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 65
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 861
Number of instances of unregistered ASNs: 868
Number of 32-bit ASNs allocated by the RIRs: 39243
Number of 32-bit ASNs visible in the Routing Table: 32609
Prefixes from 32-bit ASNs in the Routing Table: 153716
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 482
Number of addresses announced to Internet: 3067378816
Equivalent to 182 /8s, 212 /16s and 124 /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: 99.6
Total number of prefixes smaller than registry allocations: 304722
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 235465
Total APNIC prefixes after maximum aggregation: 66756
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 230373
Unique aggregates announced from the APNIC address blocks: 94714
APNIC Region origin ASes present in the Internet Routing Table: 12615
APNIC Prefixes per ASN: 18.26
APNIC Region origin ASes announcing only one prefix: 3588
APNIC Region transit ASes present in the Internet Routing Table: 1731
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7810
Number of APNIC addresses announced to Internet: 774130944
Equivalent to 46 /8s, 36 /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, 131072-151865
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: 261619
Total ARIN prefixes after maximum aggregation: 119996
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 261657
Unique aggregates announced from the ARIN address blocks: 124798
ARIN Region origin ASes present in the Internet Routing Table: 19017
ARIN Prefixes per ASN: 13.76
ARIN Region origin ASes announcing only one prefix: 6900
ARIN Region transit ASes present in the Internet Routing Table: 1952
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 38
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4473
Number of ARIN addresses announced to Internet: 1295507200
Equivalent to 77 /8s, 55 /16s and 223 /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: 257346
Total RIPE prefixes after maximum aggregation: 117651
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 254700
Unique aggregates announced from the RIPE address blocks: 150574
RIPE Region origin ASes present in the Internet Routing Table: 28156
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12055
RIPE Region transit ASes present in the Internet Routing Table: 3985
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10711
Number of RIPE addresses announced to Internet: 713908096
Equivalent to 42 /8s, 141 /16s and 95 /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: 114809
Total LACNIC prefixes after maximum aggregation: 27616
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114672
Unique aggregates announced from the LACNIC address blocks: 48512
LACNIC Region origin ASes present in the Internet Routing Table: 10960
LACNIC Prefixes per ASN: 10.46
LACNIC Region origin ASes announcing only one prefix: 2648
LACNIC Region transit ASes present in the Internet Routing Table: 2194
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 65
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8653
Number of LACNIC addresses announced to Internet: 176425984
Equivalent to 10 /8s, 132 /16s and 12 /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: 27478
Total AfriNIC prefixes after maximum aggregation: 5438
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 35694
Unique aggregates announced from the AfriNIC address blocks: 11721
AfriNIC Region origin ASes present in the Internet Routing Table: 1632
AfriNIC Prefixes per ASN: 21.87
AfriNIC Region origin ASes announcing only one prefix: 567
AfriNIC Region transit ASes present in the Internet Routing Table: 322
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: 962
Number of AfriNIC addresses announced to Internet: 107134208
Equivalent to 6 /8s, 98 /16s and 189 /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 9160 8884 44 CHINAMOBILE-CN China Mobile Communicati
7545 5912 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4710 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3502 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3430 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2495 11121 601 KIXS-AS-KR Korea Telecom, KR
9498 2399 491 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2169 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2118 430 199 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 6267 10276 2707 AMAZON-02, US
11492 4473 297 696 CABLEONE, US
22773 3939 3076 363 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3901 264 31 VIASAT-SP-BACKBONE, US
16625 3592 1835 2538 AKAMAI-AS, US
6327 3432 1318 62 SHAW, CA
749 2882 50780 2138 DNIC-AS-00749, US
30036 2618 373 133 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2520 4962 423 CENTURYLINK-US-LEGACY-QWEST, US
20115 2251 3051 492 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 6773 1730 150 UNI2-AS, ES
9121 6726 1692 17 TTNET, TR
8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3937 3360 201 AKAMAI-ASN1, NL
39891 3819 220 34 ALJAWWALSTC-AS, SA
12389 2949 2273 909 ROSTELECOM-AS, RU
6849 2907 355 21 UKRTELNET, UA
9009 2484 248 1290 M247, GB
34984 2239 358 633 TELLCOM-AS, TR
47331 2089 328 1599 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 10615 3389 561 Uninet S.A. de C.V., MX
10620 3473 519 741 Telmex Colombia S.A., CO
11830 2424 369 63 Instituto Costarricense de Electricidad
13999 1765 297 475 Mega Cable, S.A. de C.V., MX
6503 1453 355 525 Axtel, S.A.B. de C.V., MX
28573 1397 2333 253 CLARO S.A., BR
3816 1255 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1076 369 21 Telefonica del Peru S.A.A., PE
11664 1021 191 442 Techtel LMDS Comunicaciones Interactiva
11172 961 133 63 Alestra, S. de R.L. de C.V., MX
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 1654 393 21 LINKdotNET-AS, EG
24835 1444 515 32 RAYA-AS, EG
36992 1314 1519 263 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 907 65 59 ORANGE-COTE-IVOIRE, CI
6713 612 1863 34 IAM-AS, MA
36935 600 519 39 Vodafone-, EG
15399 512 51 33 WANANCHI-, KE
37342 467 32 1 MOVITEL, MZ
23889 423 232 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 10615 3389 561 Uninet S.A. de C.V., MX
9808 9160 8884 44 CHINAMOBILE-CN China Mobile Communicati
12479 6773 1730 150 UNI2-AS, ES
9121 6726 1692 17 TTNET, TR
16509 6267 10276 2707 AMAZON-02, US
7545 5912 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4710 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4473 297 696 CABLEONE, US
8551 4008 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3939 3076 363 ASN-CXA-ALL-CCI-22773-RDC, 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 9160 9116 CHINAMOBILE-CN China Mobile Communications Grou
9121 6726 6709 TTNET, TR
12479 6773 6623 UNI2-AS, ES
7545 5912 5215 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4710 4635 ERX-CERNET-BKB China Education and Research Net
8551 4008 3969 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3901 3870 VIASAT-SP-BACKBONE, US
39891 3819 3785 ALJAWWALSTC-AS, SA
11492 4473 3777 CABLEONE, US
20940 3937 3736 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 5.133.124.0/24 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
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, 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
23.141.0.0/24 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
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 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 /10:41 /11:100 /12:303
/13:591 /14:1211 /15:2065 /16:13538 /17:8264 /18:13890
/19:25208 /20:43811 /21:52298 /22:108444 /23:96006 /24:530951
/25:828 /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 5881 6726 TTNET, TR
12479 5754 6773 UNI2-AS, ES
8151 4271 10615 Uninet S.A. de C.V., MX
8551 3474 4008 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3380 4473 CABLEONE, US
6327 3244 3432 SHAW, CA
39891 3131 3819 ALJAWWALSTC-AS, SA
7155 2991 3901 VIASAT-SP-BACKBONE, US
22773 2941 3939 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2758 2907 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1943 2:1037 3:154 4:7 5:3792 6:104
7:5 8:1566 9:1 11:172 12:1708 13:298
14:2381 15:192 16:45 17:385 18:160 20:191
21:4 22:188 23:5652 24:2302 25:6 27:2592
29:19 31:2418 32:96 34:1 35:73 36:1755
37:4417 38:2825 39:701 40:153 41:3936 42:1085
43:2184 44:302 45:16012 46:4129 47:344 49:1694
50:2161 51:99 52:1417 54:364 55:735 56:8
57:58 58:1809 59:1205 60:958 61:2259 62:2486
63:1956 64:5505 65:2320 66:4851 67:2973 68:1192
69:4170 70:1342 71:643 72:3049 74:2660 75:1386
76:591 77:2186 78:3913 79:3113 80:1978 81:1736
82:1498 83:1210 84:1368 85:3658 86:712 87:1962
88:2742 89:3298 90:520 91:7623 92:1999 93:2591
94:3508 95:4776 96:1309 97:349 98:989 99:737
100:75 101:1042 102:2055 103:28977 104:4359 105:462
106:859 107:2529 108:838 109:4208 110:2039 111:3294
112:2030 113:1548 114:1489 115:1973 116:1901 117:2517
118:2331 119:1837 120:1691 121:1073 122:2578 123:2120
124:1595 125:2122 128:1235 129:1091 130:967 131:2053
132:768 133:372 134:1918 135:289 136:884 137:857
138:2442 139:1497 140:861 141:1404 142:1297 143:1457
144:1207 145:344 146:1820 147:1478 148:2226 149:1729
150:847 151:1079 152:1854 153:458 154:3545 155:1428
156:1851 157:1228 158:1040 159:2119 160:2472 161:1281
162:3465 163:1261 164:1638 165:1604 166:710 167:1707
168:3806 169:835 170:4498 171:834 172:3138 173:3095
174:1024 175:1123 176:3527 177:4675 178:3494 179:2010
180:2282 181:2973 182:3252 183:1958 184:2388 185:19464
186:4329 187:3708 188:3863 189:3224 190:8882 191:1328
192:10997 193:8606 194:6989 195:4965 196:2975 197:2406
198:6032 199:6044 200:7475 201:5699 202:10490 203:10039
204:4545 205:3457 206:3765 207:3394 208:4052 209:4669
210:4279 211:2455 212:4046 213:3430 214:1160 215:67
216:6452 217:2660 218:1273 219:571 220:1950 221:980
222:843 223:2150
End of report
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