[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 24 18:03:31 UTC 2023
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 25 Feb, 2023
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: 915074
Prefixes after maximum aggregation (per Origin AS): 347188
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 446394
Total ASes present in the Internet Routing Table: 74185
Prefixes per ASN: 12.34
Origin-only ASes present in the Internet Routing Table: 63643
Origin ASes announcing only one prefix: 26113
Transit ASes present in the Internet Routing Table: 10542
Transit-only ASes present in the Internet Routing Table: 441
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1048
Number of instances of unregistered ASNs: 1054
Number of 32-bit ASNs allocated by the RIRs: 41269
Number of 32-bit ASNs visible in the Routing Table: 34240
Prefixes from 32-bit ASNs in the Routing Table: 167726
Number of bogon 32-bit ASNs visible in the Routing Table: 21
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 574
Number of addresses announced to Internet: 3064132864
Equivalent to 182 /8s, 162 /16s and 245 /24s
Percentage of available address space announced: 82.8
Percentage of allocated address space announced: 82.8
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: 306165
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242212
Total APNIC prefixes after maximum aggregation: 69129
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236732
Unique aggregates announced from the APNIC address blocks: 97969
APNIC Region origin ASes present in the Internet Routing Table: 13333
APNIC Prefixes per ASN: 17.76
APNIC Region origin ASes announcing only one prefix: 3871
APNIC Region transit ASes present in the Internet Routing Table: 1784
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8605
Number of APNIC addresses announced to Internet: 773801600
Equivalent to 46 /8s, 31 /16s and 70 /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: 267859
Total ARIN prefixes after maximum aggregation: 121809
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 270028
Unique aggregates announced from the ARIN address blocks: 130386
ARIN Region origin ASes present in the Internet Routing Table: 19066
ARIN Prefixes per ASN: 14.16
ARIN Region origin ASes announcing only one prefix: 6957
ARIN Region transit ASes present in the Internet Routing Table: 1958
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4745
Number of ARIN addresses announced to Internet: 1286921472
Equivalent to 76 /8s, 180 /16s and 221 /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: 257350
Total RIPE prefixes after maximum aggregation: 121191
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 253790
Unique aggregates announced from the RIPE address blocks: 156641
RIPE Region origin ASes present in the Internet Routing Table: 28248
RIPE Prefixes per ASN: 8.98
RIPE Region origin ASes announcing only one prefix: 12026
RIPE Region transit ASes present in the Internet Routing Table: 3970
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11041
Number of RIPE addresses announced to Internet: 718421888
Equivalent to 42 /8s, 210 /16s and 63 /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: 117438
Total LACNIC prefixes after maximum aggregation: 28511
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 116688
Unique aggregates announced from the LACNIC address blocks: 48794
LACNIC Region origin ASes present in the Internet Routing Table: 10973
LACNIC Prefixes per ASN: 10.63
LACNIC Region origin ASes announcing only one prefix: 2659
LACNIC Region transit ASes present in the Internet Routing Table: 2282
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8780
Number of LACNIC addresses announced to Internet: 176546816
Equivalent to 10 /8s, 133 /16s and 228 /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: 29167
Total AfriNIC prefixes after maximum aggregation: 5780
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 37262
Unique aggregates announced from the AfriNIC address blocks: 12155
AfriNIC Region origin ASes present in the Internet Routing Table: 1723
AfriNIC Prefixes per ASN: 21.63
AfriNIC Region origin ASes announcing only one prefix: 600
AfriNIC Region transit ASes present in the Internet Routing Table: 337
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1069
Number of AfriNIC addresses announced to Internet: 108095488
Equivalent to 6 /8s, 113 /16s and 104 /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 9467 8884 52 CHINAMOBILE-CN China Mobile Communicati
7545 5810 787 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4861 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3665 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3531 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3377 1874 95 VNPT-AS-VN VNPT Corp, VN
9498 2786 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2544 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
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 8023 10737 2873 AMAZON-02, US
11492 4514 299 642 CABLEONE, US
7155 3955 270 43 VIASAT-SP-BACKBONE, US
22773 3649 3063 285 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3504 1320 64 SHAW, CA
16625 3307 1660 2430 AKAMAI-AS, US
749 3034 50571 2301 DNIC-AS-00749, US
396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US
7018 2582 24139 1575 ATT-INTERNET4, US
30036 2534 363 422 MEDIACOM-ENTERPRISE-BUSINESS, 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 7076 1706 146 UNI2-AS, ES
39891 4561 269 58 ALJAWWALSTC-AS, SA
20940 4048 3399 175 AKAMAI-ASN1, NL
8551 3901 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2950 2292 911 ROSTELECOM-AS, RU
9009 2666 253 1387 M247, RO
34984 2264 359 608 TELLCOM-AS, TR
6849 2164 339 19 UKRTELNET, UA
58224 1847 949 546 TCI, IR
13188 1607 100 27 TRIOLAN, UA
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 11167 3346 585 Uninet S.A. de C.V., MX
10620 3467 504 872 Telmex Colombia S.A., CO
11830 2263 369 65 Instituto Costarricense de Electricidad
13999 2255 370 603 Mega Cable, S.A. de C.V., MX
28573 1342 2324 256 Claro NXT Telecomunicacoes Ltda, BR
6503 1297 339 517 Axtel, S.A.B. de C.V., MX
3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1134 370 22 Telefonica del Peru S.A.A., PE
11664 1103 180 456 Techtel LMDS Comunicaciones Interactiva
26615 1025 2498 45 TIM SA, BR
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
24835 1542 533 30 RAYA-AS, EG
24863 1489 393 19 LINKdotNET-AS, EG
36992 1346 1517 278 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1001 67 53 ORANGE-COTE-IVOIRE, CI
36935 886 520 42 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 526 54 46 WANANCHI-, KE
24757 498 73 5 EthioNet-AS, ET
37342 493 32 1 MOVITEL, MZ
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 11167 3346 585 Uninet S.A. de C.V., MX
9808 9467 8884 52 CHINAMOBILE-CN China Mobile Communicati
16509 8023 10737 2873 AMAZON-02, US
12479 7076 1706 146 UNI2-AS, ES
7545 5810 787 694 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4861 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4561 269 58 ALJAWWALSTC-AS, SA
11492 4514 299 642 CABLEONE, US
20940 4048 3399 175 AKAMAI-ASN1, NL
7155 3955 270 43 VIASAT-SP-BACKBONE, 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 9467 9415 CHINAMOBILE-CN China Mobile Communications Grou
12479 7076 6930 UNI2-AS, ES
16509 8023 5150 AMAZON-02, US
7545 5810 5116 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4861 4786 ERX-CERNET-BKB China Education and Research Net
39891 4561 4503 ALJAWWALSTC-AS, SA
7155 3955 3912 VIASAT-SP-BACKBONE, US
20940 4048 3873 AKAMAI-ASN1, NL
11492 4514 3872 CABLEONE, US
8551 3901 3864 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
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
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US
16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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
23.131.185.0/24 Origin: 174 COGENT-174, US
23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.186.0/24 Origin: 174 COGENT-174, US
23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.187.0/24 Origin: 174 COGENT-174, US
23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.188.0/24 Origin: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
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 /10:39 /11:103 /12:299
/13:580 /14:1201 /15:2040 /16:13485 /17:8298 /18:13872
/19:25241 /20:44374 /21:51795 /22:109976 /23:97498 /24:545423
/25:821 /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
12479 6133 7076 UNI2-AS, ES
8151 5177 11167 Uninet S.A. de C.V., MX
39891 3552 4561 ALJAWWALSTC-AS, SA
11492 3430 4514 CABLEONE, US
8551 3373 3901 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3312 3504 SHAW, CA
7155 3032 3955 VIASAT-SP-BACKBONE, US
22773 2699 3649 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2191 2534 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2022 3467 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1674 2:1241 3:169 4:5 5:4335 6:114
7:6 8:1549 9:1 11:172 12:1583 13:392
14:2353 15:291 16:111 17:367 18:396 20:249
21:4 22:188 23:6088 24:2503 25:4 27:2522
29:19 31:2512 32:107 34:8 35:106 36:1910
37:4602 38:4224 39:863 40:152 41:4030 42:1071
43:2337 44:302 45:16409 46:4185 47:383 49:1743
50:1833 51:386 52:1584 54:397 55:870 56:8
57:87 58:1743 59:1174 60:983 61:2439 62:2630
63:1942 64:5646 65:2324 66:4931 67:3035 68:1351
69:4147 70:1274 71:662 72:2972 74:2599 75:1458
76:603 77:2409 78:1857 79:3173 80:2064 81:1735
82:1502 83:1240 84:1532 85:2999 86:758 87:1969
88:1241 89:3622 90:611 91:7680 92:2022 93:2589
94:3510 95:3957 96:1335 97:358 98:1164 99:744
100:75 101:1069 102:2598 103:31036 104:4516 105:485
106:857 107:2546 108:919 109:4398 110:2094 111:3329
112:2044 113:1557 114:1625 115:2038 116:1913 117:2555
118:2281 119:1951 120:1774 121:1114 122:2604 123:2185
124:1586 125:2418 128:1317 129:1073 130:997 131:1986
132:787 133:413 134:1909 135:294 136:861 137:939
138:2555 139:1548 140:1193 141:1471 142:1426 143:1483
144:1211 145:350 146:1902 147:1560 148:2304 149:1916
150:873 151:1147 152:1848 153:487 154:4201 155:1421
156:1679 157:1298 158:1019 159:2265 160:2551 161:1445
162:3544 163:1496 164:1596 165:1675 166:856 167:1719
168:3833 169:926 170:4549 171:899 172:3508 173:2981
174:1038 175:1162 176:3730 177:4582 178:3622 179:2211
180:2384 181:3410 182:3427 183:1933 184:2359 185:20092
186:4655 187:3951 188:4153 189:3580 190:9129 191:1445
192:10957 193:8830 194:7241 195:5122 196:3063 197:2399
198:5961 199:6108 200:7730 201:5878 202:10687 203:10030
204:4611 205:3530 206:3861 207:3446 208:4085 209:4865
210:4466 211:2500 212:4093 213:3561 214:1088 215:55
216:6579 217:2647 218:1287 219:573 220:2019 221:972
222:872 223:2137
End of report
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