[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 4 18:03:09 UTC 2021
This is an automated weekly mailing describing the state of the Internet
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 http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 05 Jun, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 861529
Prefixes after maximum aggregation (per Origin AS): 325860
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 409458
Total ASes present in the Internet Routing Table: 71380
Prefixes per ASN: 12.07
Origin-only ASes present in the Internet Routing Table: 61374
Origin ASes announcing only one prefix: 25347
Transit ASes present in the Internet Routing Table: 10006
Transit-only ASes present in the Internet Routing Table: 318
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 54
Max AS path prepend of ASN ( 48366) 51
Prefixes from unregistered ASNs in the Routing Table: 1039
Number of instances of unregistered ASNs: 1046
Number of 32-bit ASNs allocated by the RIRs: 36221
Number of 32-bit ASNs visible in the Routing Table: 30122
Prefixes from 32-bit ASNs in the Routing Table: 140143
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 526
Number of addresses announced to Internet: 3040850816
Equivalent to 181 /8s, 63 /16s and 179 /24s
Percentage of available address space announced: 82.1
Percentage of allocated address space announced: 82.1
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: 291740
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 229660
Total APNIC prefixes after maximum aggregation: 65549
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 225654
Unique aggregates announced from the APNIC address blocks: 90093
APNIC Region origin ASes present in the Internet Routing Table: 11612
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 3333
APNIC Region transit ASes present in the Internet Routing Table: 1636
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6773
Number of APNIC addresses announced to Internet: 774887424
Equivalent to 46 /8s, 47 /16s and 216 /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, 131072-147769
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: 248257
Total ARIN prefixes after maximum aggregation: 113608
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 248329
Unique aggregates announced from the ARIN address blocks: 118437
ARIN Region origin ASes present in the Internet Routing Table: 18819
ARIN Prefixes per ASN: 13.20
ARIN Region origin ASes announcing only one prefix: 6820
ARIN Region transit ASes present in the Internet Routing Table: 1952
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3892
Number of ARIN addresses announced to Internet: 1271333888
Equivalent to 75 /8s, 199 /16s and 4 /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: 245789
Total RIPE prefixes after maximum aggregation: 114462
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 241970
Unique aggregates announced from the RIPE address blocks: 142620
RIPE Region origin ASes present in the Internet Routing Table: 27963
RIPE Prefixes per ASN: 8.65
RIPE Region origin ASes announcing only one prefix: 12005
RIPE Region transit ASes present in the Internet Routing Table: 3904
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 54
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10220
Number of RIPE addresses announced to Internet: 710559104
Equivalent to 42 /8s, 90 /16s and 69 /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: 110886
Total LACNIC prefixes after maximum aggregation: 26424
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 112010
Unique aggregates announced from the LACNIC address blocks: 47110
LACNIC Region origin ASes present in the Internet Routing Table: 10770
LACNIC Prefixes per ASN: 10.40
LACNIC Region origin ASes announcing only one prefix: 2681
LACNIC Region transit ASes present in the Internet Routing Table: 2043
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8417
Number of LACNIC addresses announced to Internet: 176250624
Equivalent to 10 /8s, 129 /16s and 95 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 25897
Total AfriNIC prefixes after maximum aggregation: 5077
AfriNIC Deaggregation factor: 5.10
Prefixes being announced from the AfriNIC address blocks: 33040
Unique aggregates announced from the AfriNIC address blocks: 10730
AfriNIC Region origin ASes present in the Internet Routing Table: 1478
AfriNIC Prefixes per ASN: 22.35
AfriNIC Region origin ASes announcing only one prefix: 508
AfriNIC Region transit ASes present in the Internet Routing Table: 302
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 820
Number of AfriNIC addresses announced to Internet: 107378432
Equivalent to 6 /8s, 102 /16s and 119 /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 7859 8999 55 CMNET-GD Guangdong Mobile Communication
7545 5786 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4761 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3528 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3479 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2809 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2426 11104 563 KIXS-AS-KR Korea Telecom, KR
9498 2346 482 243 BBIL-AP BHARTI Airtel Ltd., IN
4755 2127 441 192 TATACOMM-AS TATA Communications formerl
45090 2116 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5163 9380 2293 AMAZON-02, US
11492 4741 313 677 CABLEONE, US
7155 4026 264 32 VIASAT-SP-BACKBONE, US
22773 3927 3002 242 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3466 1774 2426 AKAMAI-AS, US
6327 3361 1317 69 SHAW, CA
30036 2582 374 119 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2515 5034 479 CENTURYLINK-US-LEGACY-QWEST, US
5972 2225 450 798 DNIC-ASBLK-05800-06055, US
20115 2171 2929 502 CHARTER-20115, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
47331 7831 1053 3511 TTNET, TR
12479 6710 1725 146 UNI2-AS, ES
20940 3625 3347 201 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 2982 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2919 2283 897 ROSTELECOM-AS, RU
9009 2429 254 1306 M247, GB
34984 2204 355 591 TELLCOM-AS, TR
13188 1609 100 31 TRIOLAN, UA
58224 1598 887 567 TCI, IR
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8645 3483 573 Uninet S.A. de C.V., MX
10620 3422 526 613 Telmex Colombia S.A., CO
11830 2501 369 62 Instituto Costarricense de Electricidad
13999 1737 435 455 Mega Cable, S.A. de C.V., MX
6503 1450 311 476 Axtel, S.A.B. de C.V., MX
28573 1395 2283 228 CLARO S.A., BR
3816 1237 649 151 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1113 374 31 Telefonica del Peru S.A.A., PE
11664 1002 207 419 Techtel LMDS Comunicaciones Interactiva
11172 963 111 69 Alestra, S. de R.L. de C.V., MX
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1562 393 22 LINKdotNET-AS, EG
24835 1454 498 30 RAYA-AS, EG
36992 1259 1457 265 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 736 68 11 ORANGE-COTE-IVOIRE, CI
6713 612 1863 34 IAM-AS, MA
36935 528 522 40 Vodafone-, EG
15399 491 48 24 WANANCHI-, KE
37342 484 32 1 MOVITEL, MZ
36914 420 82 3 KENET-AS, KE
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8645 3483 573 Uninet S.A. de C.V., MX
9808 7859 8999 55 CMNET-GD Guangdong Mobile Communication
47331 7831 1053 3511 TTNET, TR
12479 6710 1725 146 UNI2-AS, ES
7545 5786 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5163 9380 2293 AMAZON-02, US
4538 4761 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4741 313 677 CABLEONE, US
7155 4026 264 32 VIASAT-SP-BACKBONE, US
22773 3927 3002 242 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 7859 7804 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6710 6564 UNI2-AS, ES
7545 5786 5112 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4761 4687 ERX-CERNET-BKB China Education and Research Net
47331 7831 4320 TTNET, TR
11492 4741 4064 CABLEONE, US
7155 4026 3994 VIASAT-SP-BACKBONE, US
22773 3927 3685 ASN-CXA-ALL-CCI-22773-RDC, US
7713 3528 3472 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
7552 3479 3459 VIETEL-AS-AP Viettel Group, VN
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
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 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US
46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, US
15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.141.0.0/24 Origin: 395350 UNASSIGNED
Transit: 11426 TWC-11426-CAROLINAS, US
23.142.80.0/24 Origin: 209319 IPV6ROUTING, US
Transit: 46573 LAYER-HOST, US
23.162.32.0/24 Origin: 32444 SAFELINK-MV, US
Transit: 6939 HURRICANE, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.67.224.0/22 Origin: 15964 CAMNET-AS, CM
Transit: 12956 TELEFONICA TELXIUS, ES
Complete listing at http://thyme.rand.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 /11:102 /12:306
/13:587 /14:1193 /15:1993 /16:13474 /17:8330 /18:13983
/19:25477 /20:42323 /21:51089 /22:107212 /23:92001 /24:501993
/25:1396 /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
47331 6998 7831 TTNET, TR
12479 5659 6710 UNI2-AS, ES
11492 3777 4741 CABLEONE, US
8151 3189 8645 Uninet S.A. de C.V., MX
6327 3167 3361 SHAW, CA
7155 3114 4026 VIASAT-SP-BACKBONE, US
22773 2960 3927 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2447 2982 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2249 2582 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1887 2:1190 3:131 4:19 5:3602 6:74
7:5 8:1532 9:1 11:164 12:1741 13:363
14:2305 15:78 16:15 17:322 18:93 20:128
21:1 22:188 23:4788 24:2416 25:2 27:2548
29:19 31:2290 32:109 34:1 35:39 36:1579
37:3782 38:2155 39:624 40:159 41:3847 42:937
43:2086 44:260 45:14965 46:3713 47:318 49:1617
50:1789 51:100 52:1245 54:224 55:772 56:12
57:52 58:1708 59:1202 60:927 61:2307 62:2274
63:1970 64:5349 65:2379 66:5039 67:2889 68:1167
69:4088 70:1387 71:681 72:3151 74:2593 75:1489
76:695 77:2021 78:3696 79:2301 80:1858 81:1649
82:1365 83:1133 84:1275 85:3403 86:713 87:1802
88:2699 89:2996 90:484 91:7340 92:1790 93:2538
94:3124 95:4459 96:1297 97:343 98:971 99:968
100:92 101:1045 102:1473 103:26120 104:3753 105:435
106:782 107:2275 108:715 109:3862 110:1994 111:3178
112:1963 113:1540 114:1458 115:1910 116:1880 117:2353
118:2349 119:1897 120:1510 121:1085 122:2492 123:2172
124:1583 125:2068 128:1284 129:1214 130:859 131:2020
132:746 133:360 134:1613 135:300 136:762 137:931
138:2346 139:1180 140:733 141:1181 142:1191 143:1285
144:1249 145:332 146:1456 147:1329 148:2186 149:1441
150:816 151:1073 152:1518 153:413 154:2500 155:1325
156:1561 157:1182 158:910 159:2003 160:2321 161:1165
162:3305 163:989 164:1526 165:1386 166:602 167:1778
168:3622 169:687 170:4266 171:771 172:2415 173:2974
174:995 175:1085 176:3164 177:4344 178:2902 179:1895
180:2273 181:2633 182:3197 183:2070 184:2400 185:18342
186:4206 187:3126 188:3303 189:2934 190:8861 191:1384
192:10684 193:8186 194:6663 195:4780 196:2867 197:2323
198:6070 199:6011 200:7403 201:5279 202:10552 203:10090
204:4654 205:3345 206:3565 207:3394 208:4006 209:4693
210:4245 211:2249 212:3716 213:3392 214:1207 215:61
216:6255 217:2562 218:1212 219:707 220:2060 221:981
222:881 223:1889
End of report
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