[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 23 18:02:45 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 24 Apr, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 857293
Prefixes after maximum aggregation (per Origin AS): 324456
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 406443
Total ASes present in the Internet Routing Table: 71149
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 61197
Origin ASes announcing only one prefix: 25304
Transit ASes present in the Internet Routing Table: 9952
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: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 1013
Number of instances of unregistered ASNs: 1024
Number of 32-bit ASNs allocated by the RIRs: 35805
Number of 32-bit ASNs visible in the Routing Table: 29816
Prefixes from 32-bit ASNs in the Routing Table: 138622
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 497
Number of addresses announced to Internet: 3031282560
Equivalent to 180 /8s, 173 /16s and 179 /24s
Percentage of available address space announced: 81.9
Percentage of allocated address space announced: 81.9
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: 291090
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226990
Total APNIC prefixes after maximum aggregation: 65614
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 223063
Unique aggregates announced from the APNIC address blocks: 89596
APNIC Region origin ASes present in the Internet Routing Table: 11532
APNIC Prefixes per ASN: 19.34
APNIC Region origin ASes announcing only one prefix: 3302
APNIC Region transit ASes present in the Internet Routing Table: 1622
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6680
Number of APNIC addresses announced to Internet: 771997952
Equivalent to 46 /8s, 3 /16s and 193 /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, 131072-143673
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: 246095
Total ARIN prefixes after maximum aggregation: 113015
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 246524
Unique aggregates announced from the ARIN address blocks: 117903
ARIN Region origin ASes present in the Internet Routing Table: 18782
ARIN Prefixes per ASN: 13.13
ARIN Region origin ASes announcing only one prefix: 6813
ARIN Region transit ASes present in the Internet Routing Table: 1950
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3832
Number of ARIN addresses announced to Internet: 1264127744
Equivalent to 75 /8s, 89 /16s and 15 /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: 244552
Total RIPE prefixes after maximum aggregation: 113812
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 240539
Unique aggregates announced from the RIPE address blocks: 141455
RIPE Region origin ASes present in the Internet Routing Table: 27905
RIPE Prefixes per ASN: 8.62
RIPE Region origin ASes announcing only one prefix: 11992
RIPE Region transit ASes present in the Internet Routing Table: 3888
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10142
Number of RIPE addresses announced to Internet: 711050880
Equivalent to 42 /8s, 97 /16s and 198 /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: 112705
Total LACNIC prefixes after maximum aggregation: 26332
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 113867
Unique aggregates announced from the LACNIC address blocks: 46980
LACNIC Region origin ASes present in the Internet Routing Table: 10738
LACNIC Prefixes per ASN: 10.60
LACNIC Region origin ASes announcing only one prefix: 2702
LACNIC Region transit ASes present in the Internet Routing Table: 2025
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 33
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8361
Number of LACNIC addresses announced to Internet: 176082944
Equivalent to 10 /8s, 126 /16s and 208 /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: 25937
Total AfriNIC prefixes after maximum aggregation: 4937
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32803
Unique aggregates announced from the AfriNIC address blocks: 10059
AfriNIC Region origin ASes present in the Internet Routing Table: 1457
AfriNIC Prefixes per ASN: 22.51
AfriNIC Region origin ASes announcing only one prefix: 495
AfriNIC Region transit ASes present in the Internet Routing Table: 297
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 801
Number of AfriNIC addresses announced to Internet: 107602432
Equivalent to 6 /8s, 105 /16s and 226 /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 6346 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5732 783 669 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4754 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3523 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3482 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2901 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2434 11104 565 KIXS-AS-KR Korea Telecom, KR
9498 2336 481 236 BBIL-AP BHARTI Airtel Ltd., IN
4755 2119 441 191 TATACOMM-AS TATA Communications formerl
45090 2098 1197 72 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 5030 9345 2242 AMAZON-02, US
11492 4752 315 712 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3935 3005 249 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3430 1767 2427 AKAMAI-AS, US
6327 3360 1317 69 SHAW, CA
30036 2559 373 127 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2531 5037 484 CENTURYLINK-US-LEGACY-QWEST, US
5650 2345 2997 1640 FRONTIER-FRTR, US
5972 2231 451 784 DNIC-ASBLK-05800-06055, 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 7796 1045 3498 TTNET, TR
12479 6489 1725 144 UNI2-AS, ES
20940 3579 3347 204 AKAMAI-ASN1, NL
8551 3351 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3266 187 22 ALJAWWALSTC-AS, SA
12389 2908 2284 898 ROSTELECOM-AS, RU
9009 2413 247 1290 M247, GB
34984 2216 357 586 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1580 883 574 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 8518 3474 575 Uninet S.A. de C.V., MX
10620 3412 526 615 Telmex Colombia S.A., CO
11830 2494 369 62 Instituto Costarricense de Electricidad
7303 1899 2063 72 Telecom Argentina S.A., AR
13999 1672 447 424 Mega Cable, S.A. de C.V., MX
6503 1443 311 475 Axtel, S.A.B. de C.V., MX
28573 1386 2276 224 CLARO S.A., BR
3816 1229 644 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1130 377 39 Telefonica del Peru S.A.A., PE
11664 1002 212 400 Techtel LMDS Comunicaciones Interactiva
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 1586 393 22 LINKdotNET-AS, EG
24835 1443 486 27 RAYA-AS, EG
36992 1202 1537 176 ETISALAT-MISR, EG
36903 1181 536 114 MT-MPLS, MA
29571 731 68 11 ORANGE-COTE-IVOIRE, CI
6713 549 1863 34 IAM-AS, MA
36935 517 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 483 48 24 WANANCHI-, KE
23889 439 232 16 MauritiusTelecom, MU
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 8518 3474 575 Uninet S.A. de C.V., MX
47331 7796 1045 3498 TTNET, TR
12479 6489 1725 144 UNI2-AS, ES
9808 6346 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5732 783 669 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5030 9345 2242 AMAZON-02, US
4538 4754 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4752 315 712 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3935 3005 249 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
12479 6489 6345 UNI2-AS, ES
9808 6346 6291 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5732 5063 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4754 4680 ERX-CERNET-BKB China Education and Research Net
47331 7796 4298 TTNET, TR
11492 4752 4040 CABLEONE, US
7155 4030 3998 VIASAT-SP-BACKBONE, US
22773 3935 3686 ASN-CXA-ALL-CCI-22773-RDC, US
7713 3523 3467 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
7552 3482 3462 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
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46766 UNALLOCATED 8.44.208.0/24 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: 398481 REDMERCURY, US
Transit: 209319 IPV6ROUTING, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
27.126.156.0/22 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
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 /11:103 /12:297
/13:586 /14:1193 /15:1947 /16:13532 /17:8334 /18:13883
/19:25773 /20:42564 /21:51465 /22:106771 /23:91238 /24:498129
/25:1408 /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 6976 7796 TTNET, TR
12479 5442 6489 UNI2-AS, ES
11492 3803 4752 CABLEONE, US
6327 3168 3360 SHAW, CA
7155 3118 4030 VIASAT-SP-BACKBONE, US
8151 3084 8518 Uninet S.A. de C.V., MX
22773 2964 3935 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2815 3351 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
39891 2801 3266 ALJAWWALSTC-AS, SA
30036 2234 2559 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1882 2:1107 3:111 4:19 5:3527 6:65
7:5 8:1502 9:1 11:36 12:1748 13:362
14:2303 15:76 16:15 17:320 18:93 20:128
22:188 23:4654 24:2386 25:2 27:2524 29:19
31:2326 32:113 34:2 35:40 36:1318 37:3762
38:2068 39:610 40:160 41:3863 42:926 43:2118
44:239 45:14968 46:3704 47:319 49:1615 50:1773
51:92 52:1236 54:223 55:755 56:8 57:58
58:1716 59:1206 60:889 61:2365 62:2224 63:1959
64:5286 65:2382 66:5159 67:2860 68:1154 69:4075
70:1399 71:690 72:3182 74:2587 75:1486 76:685
77:2031 78:3697 79:2490 80:1867 81:1651 82:1361
83:1122 84:1271 85:3381 86:708 87:1781 88:2698
89:3009 90:443 91:7316 92:1750 93:2539 94:3111
95:4438 96:1268 97:345 98:990 99:969 100:92
101:1052 102:1409 103:25991 104:3739 105:435 106:725
107:2256 108:707 109:4026 110:2007 111:2940 112:1970
113:1622 114:1468 115:1891 116:1901 117:2313 118:2331
119:1900 120:1103 121:1079 122:2266 123:2209 124:1571
125:2082 128:1365 129:965 130:848 131:2036 132:753
133:356 134:1595 135:290 136:746 137:923 138:2296
139:1175 140:735 141:1190 142:1154 143:1265 144:1261
145:331 146:1412 147:1308 148:2213 149:1411 150:806
151:1079 152:1548 153:394 154:2387 155:1318 156:1495
157:1178 158:916 159:2041 160:2117 161:1142 162:3291
163:983 164:1504 165:1389 166:594 167:1772 168:3567
169:681 170:4172 171:765 172:2140 173:2946 174:988
175:1084 176:3115 177:4335 178:2899 179:1969 180:2321
181:2591 182:3207 183:1857 184:2426 185:18182 186:4203
187:3188 188:3299 189:2847 190:8848 191:1370 192:10670
193:8021 194:6592 195:4724 196:2881 197:2380 198:6057
199:6026 200:7410 201:5334 202:10571 203:10089 204:4657
205:3335 206:3557 207:3348 208:4018 209:4662 210:4236
211:2190 212:3678 213:3339 214:1229 215:61 216:6185
217:2539 218:1161 219:709 220:2089 221:977 222:965
223:1863
End of report
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