[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 30 18:02:52 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 01 May, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 857706
Prefixes after maximum aggregation (per Origin AS): 324495
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 407244
Total ASes present in the Internet Routing Table: 71169
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 61198
Origin ASes announcing only one prefix: 25266
Transit ASes present in the Internet Routing Table: 9971
Transit-only ASes present in the Internet Routing Table: 314
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 1058
Number of instances of unregistered ASNs: 1065
Number of 32-bit ASNs allocated by the RIRs: 35885
Number of 32-bit ASNs visible in the Routing Table: 29866
Prefixes from 32-bit ASNs in the Routing Table: 139106
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 584
Number of addresses announced to Internet: 3031167104
Equivalent to 180 /8s, 171 /16s and 240 /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: 291034
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226664
Total APNIC prefixes after maximum aggregation: 65431
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222811
Unique aggregates announced from the APNIC address blocks: 89728
APNIC Region origin ASes present in the Internet Routing Table: 11550
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 3306
APNIC Region transit ASes present in the Internet Routing Table: 1631
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6706
Number of APNIC addresses announced to Internet: 772731136
Equivalent to 46 /8s, 14 /16s and 241 /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: 246824
Total ARIN prefixes after maximum aggregation: 113053
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 247249
Unique aggregates announced from the ARIN address blocks: 117945
ARIN Region origin ASes present in the Internet Routing Table: 18784
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 6807
ARIN Region transit ASes present in the Internet Routing Table: 1946
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3837
Number of ARIN addresses announced to Internet: 1263470848
Equivalent to 75 /8s, 79 /16s and 9 /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: 244439
Total RIPE prefixes after maximum aggregation: 113954
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 240409
Unique aggregates announced from the RIPE address blocks: 141609
RIPE Region origin ASes present in the Internet Routing Table: 27893
RIPE Prefixes per ASN: 8.62
RIPE Region origin ASes announcing only one prefix: 11960
RIPE Region transit ASes present in the Internet Routing Table: 3884
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10144
Number of RIPE addresses announced to Internet: 711052928
Equivalent to 42 /8s, 97 /16s and 206 /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: 112824
Total LACNIC prefixes after maximum aggregation: 26370
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 113923
Unique aggregates announced from the LACNIC address blocks: 46956
LACNIC Region origin ASes present in the Internet Routing Table: 10757
LACNIC Prefixes per ASN: 10.59
LACNIC Region origin ASes announcing only one prefix: 2700
LACNIC Region transit ASes present in the Internet Routing Table: 2046
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8378
Number of LACNIC addresses announced to Internet: 176418304
Equivalent to 10 /8s, 131 /16s and 238 /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: 25896
Total AfriNIC prefixes after maximum aggregation: 4931
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32730
Unique aggregates announced from the AfriNIC address blocks: 10479
AfriNIC Region origin ASes present in the Internet Routing Table: 1451
AfriNIC Prefixes per ASN: 22.56
AfriNIC Region origin ASes announcing only one prefix: 493
AfriNIC Region transit ASes present in the Internet Routing Table: 299
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: 107045632
Equivalent to 6 /8s, 97 /16s and 99 /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 6348 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5724 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4763 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3494 1022 58 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3492 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2804 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2427 11104 563 KIXS-AS-KR Korea Telecom, KR
9498 2338 481 237 BBIL-AP BHARTI Airtel Ltd., IN
4755 2120 441 191 TATACOMM-AS TATA Communications formerl
45090 2097 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 5053 9361 2230 AMAZON-02, US
11492 4777 316 640 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3927 3006 245 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3478 1794 2446 AKAMAI-AS, US
6327 3359 1317 68 SHAW, CA
30036 2562 373 130 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2532 5037 483 CENTURYLINK-US-LEGACY-QWEST, US
5650 2298 2989 1606 FRONTIER-FRTR, US
5972 2233 452 781 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 7794 1046 3497 TTNET, TR
12479 6566 1725 145 UNI2-AS, ES
20940 3599 3347 204 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3248 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2914 2284 898 ROSTELECOM-AS, RU
9009 2419 247 1297 M247, GB
34984 2216 357 586 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1586 885 582 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 8535 3476 577 Uninet S.A. de C.V., MX
10620 3417 527 609 Telmex Colombia S.A., CO
11830 2494 369 62 Instituto Costarricense de Electricidad
7303 1970 2058 69 Telecom Argentina S.A., AR
13999 1685 447 429 Mega Cable, S.A. de C.V., MX
6503 1445 311 477 Axtel, S.A.B. de C.V., MX
28573 1374 2280 225 CLARO S.A., BR
3816 1229 644 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1131 377 39 Telefonica del Peru S.A.A., PE
11664 1002 210 400 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 1445 494 28 RAYA-AS, EG
36992 1185 1473 176 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 731 68 11 ORANGE-COTE-IVOIRE, CI
6713 594 1863 34 IAM-AS, MA
36935 521 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 474 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 8535 3476 577 Uninet S.A. de C.V., MX
47331 7794 1046 3497 TTNET, TR
12479 6566 1725 145 UNI2-AS, ES
9808 6348 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5724 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5053 9361 2230 AMAZON-02, US
11492 4777 316 640 CABLEONE, US
4538 4763 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3927 3006 245 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 6566 6421 UNI2-AS, ES
9808 6348 6293 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5724 5053 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4763 4689 ERX-CERNET-BKB China Education and Research Net
47331 7794 4297 TTNET, TR
11492 4777 4137 CABLEONE, US
7155 4030 3998 VIASAT-SP-BACKBONE, US
22773 3927 3682 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3492 3472 VIETEL-AS-AP Viettel Group, VN
7713 3494 3436 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
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
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
3577 UNALLOCATED 12.19.197.0/24 209 CENTURYLINK-US-LEGACY-QWEST,
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 /15:2001 /16:13501 /17:8335 /18:13881
/19:25802 /20:42489 /21:51438 /22:106854 /23:91355 /24:498401
/25:1400 /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 6972 7794 TTNET, TR
12479 5518 6566 UNI2-AS, ES
11492 3823 4777 CABLEONE, US
6327 3168 3359 SHAW, CA
7155 3118 4030 VIASAT-SP-BACKBONE, US
8151 3100 8535 Uninet S.A. de C.V., MX
22773 2962 3927 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2713 3248 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2233 2562 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1884 2:1210 3:122 4:19 5:3535 6:65
7:5 8:1521 9:1 11:164 12:1752 13:358
14:2280 15:75 16:15 17:322 18:93 20:128
21:1 22:188 23:4684 24:2397 25:2 27:2517
29:19 31:2336 32:113 34:2 35:39 36:1320
37:3767 38:2073 39:613 40:159 41:3872 42:927
43:2117 44:240 45:14999 46:3664 47:320 49:1602
50:1772 51:92 52:1237 54:223 55:774 56:8
57:58 58:1715 59:1201 60:895 61:2339 62:2236
63:1959 64:5321 65:2387 66:5151 67:2887 68:1156
69:4082 70:1399 71:687 72:3185 74:2591 75:1486
76:687 77:2023 78:3692 79:2413 80:1875 81:1643
82:1360 83:1126 84:1274 85:3387 86:706 87:1797
88:2699 89:2990 90:448 91:7320 92:1755 93:2520
94:3109 95:4443 96:1277 97:346 98:990 99:971
100:91 101:1049 102:1404 103:26044 104:3744 105:436
106:725 107:2267 108:713 109:4004 110:2007 111:2957
112:1961 113:1537 114:1455 115:1893 116:1894 117:2315
118:2337 119:1874 120:1113 121:1064 122:2273 123:2206
124:1572 125:2062 128:1203 129:1094 130:851 131:2022
132:752 133:356 134:1597 135:290 136:749 137:924
138:2296 139:1169 140:725 141:1189 142:1163 143:1270
144:1262 145:330 146:1414 147:1306 148:2211 149:1410
150:810 151:1075 152:1560 153:394 154:2413 155:1326
156:1495 157:1177 158:917 159:2041 160:2112 161:1148
162:3289 163:988 164:1512 165:1383 166:595 167:1777
168:3593 169:683 170:4268 171:771 172:2160 173:2955
174:992 175:1085 176:3125 177:4296 178:2894 179:1941
180:2267 181:2594 182:3211 183:1844 184:2428 185:18189
186:4205 187:3175 188:3300 189:2854 190:8821 191:1367
192:10682 193:8052 194:6596 195:4728 196:2887 197:2383
198:6054 199:6029 200:7400 201:5327 202:10571 203:10110
204:4658 205:3332 206:3560 207:3370 208:4014 209:4666
210:4261 211:2197 212:3684 213:3349 214:1227 215:61
216:6179 217:2540 218:1163 219:710 220:2084 221:961
222:880 223:1864
End of report
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