IPv4 R&E Routing Table Report 23:05 GMT Tue 14 Mar, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 906707 Prefixes after maximum aggregation (per Origin AS): 345882 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446516 Number of IPv4 prefixes with a valid ROA: 377971 Number of IPv4 prefixes with an invalid ROA: 1670 Number of IPv4 prefixes with no ROA: 527066 Total ASes present in the Internet Routing Table: 74050 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63607 Origin ASes announcing only one prefix: 26119 Transit ASes present in the Internet Routing Table: 10443 Transit-only ASes present in the Internet Routing Table: 447 Paths with bogon ASNs present in the IPv4 Routing Table: 30 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1193 Number of instances of unregistered ASNs: 1209 Number of 32-bit ASNs allocated by the RIRs: 41436 Number of 32-bit ASNs visible in the Routing Table: 34265 Prefixes from 32-bit ASNs in the Routing Table: 167770 Number of bogon 32-bit ASNs visible in the Routing Table: 45 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 528 Number of addresses announced to Internet: 3061018624 Equivalent to 182 /8s, 115 /16s and 112 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 304947 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235148 Total APNIC prefixes after maximum aggregation: 68237 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229817 Unique aggregates announced from the APNIC address blocks: 97702 APNIC Region origin ASes present in the Internet Routing Table: 13259 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 3861 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8602 Number of APNIC addresses announced to Internet: 773115392 Equivalent to 46 /8s, 20 /16s and 206 /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: 266711 Total ARIN prefixes after maximum aggregation: 121404 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268789 Unique aggregates announced from the ARIN address blocks: 130246 ARIN Region origin ASes present in the Internet Routing Table: 19010 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6978 ARIN Region transit ASes present in the Internet Routing Table: 1885 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4738 Number of ARIN addresses announced to Internet: 1285835264 Equivalent to 76 /8s, 164 /16s and 74 /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: 257824 Total RIPE prefixes after maximum aggregation: 121338 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254220 Unique aggregates announced from the RIPE address blocks: 157059 RIPE Region origin ASes present in the Internet Routing Table: 28253 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12025 RIPE Region transit ASes present in the Internet Routing Table: 3971 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11080 Number of RIPE addresses announced to Internet: 718389504 Equivalent to 42 /8s, 209 /16s and 193 /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: 116254 Total LACNIC prefixes after maximum aggregation: 28309 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 115716 Unique aggregates announced from the LACNIC address blocks: 48953 LACNIC Region origin ASes present in the Internet Routing Table: 10967 LACNIC Prefixes per ASN: 10.55 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2275 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 175159296 Equivalent to 10 /8s, 112 /16s and 184 /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: 29577 Total AfriNIC prefixes after maximum aggregation: 5797 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37637 Unique aggregates announced from the AfriNIC address blocks: 12137 AfriNIC Region origin ASes present in the Internet Routing Table: 1721 AfriNIC Prefixes per ASN: 21.87 AfriNIC Region origin ASes announcing only one prefix: 591 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1067 Number of AfriNIC addresses announced to Internet: 108125696 Equivalent to 6 /8s, 113 /16s and 222 /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 9469 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5764 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3681 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3362 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2830 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2360 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2171 440 216 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 8087 10760 2887 AMAZON-02, US 11492 4509 299 647 CABLEONE, US 7155 3966 279 45 VIASAT-SP-BACKBONE, US 22773 3644 3065 296 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3156 1586 2333 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2623 3587 357 GOOGLE-CLOUD-PLATFORM, US 7018 2563 24119 1569 ATT-INTERNET4, US 30036 2503 361 511 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7073 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4040 3399 166 AKAMAI-ASN1, NL 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2905 2293 912 ROSTELECOM-AS, RU 9009 2639 251 1382 M247, RO 34984 2267 359 610 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1848 949 545 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10005 2993 723 Uninet S.A. de C.V., MX 10620 3468 504 874 Telmex Colombia S.A., CO 13999 2283 372 609 Mega Cable, S.A. de C.V., MX 11830 2265 369 64 Instituto Costarricense de Electricidad 28573 1365 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1128 370 22 Telefonica del Peru S.A.A., PE 11664 1096 180 460 Techtel LMDS Comunicaciones Interactiva 26615 1030 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1565 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1015 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 24757 496 73 5 EthioNet-AS, ET 37342 480 32 1 MOVITEL, MZ Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10005 2993 723 Uninet S.A. de C.V., MX 9808 9469 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8087 10760 2887 AMAZON-02, US 12479 7073 1705 149 UNI2-AS, ES 7545 5764 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4509 299 647 CABLEONE, US 20940 4040 3399 166 AKAMAI-ASN1, NL 7155 3966 279 45 VIASAT-SP-BACKBONE, US 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9469 9421 CHINAMOBILE-CN China Mobile Communications Grou 12479 7073 6924 UNI2-AS, ES 16509 8087 5200 AMAZON-02, US 7545 5764 5073 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3966 3921 VIASAT-SP-BACKBONE, US 20940 4040 3874 AKAMAI-ASN1, NL 11492 4509 3862 CABLEONE, US 8551 3892 3855 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3681 3660 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/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 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 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 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /10:38 /11:103 /12:299 /13:576 /14:1198 /15:2075 /16:13430 /17:8184 /18:13691 /19:24681 /20:42943 /21:50623 /22:108808 /23:96780 /24:543240 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6131 7073 UNI2-AS, ES 8151 4583 10005 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3425 4509 CABLEONE, US 8551 3364 3892 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3313 3505 SHAW, CA 7155 3041 3966 VIASAT-SP-BACKBONE, US 22773 2696 3644 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2161 2503 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3468 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1667 2:1227 3:168 4:5 5:4415 6:118 7:6 8:1518 9:1 11:172 12:1574 13:394 14:2311 15:292 16:111 17:367 18:399 20:249 21:4 22:188 23:6117 24:2489 25:6 27:2502 29:19 31:2508 32:104 34:8 35:104 36:1926 37:4623 38:4324 39:806 40:151 41:4026 42:953 43:2311 44:309 45:16404 46:4204 47:371 49:1735 50:1819 51:570 52:1588 54:388 55:868 56:8 57:90 58:1675 59:1077 60:975 61:2459 62:2629 63:1931 64:5641 65:2311 66:4910 67:2998 68:1349 69:4117 70:1264 71:664 72:2971 74:2590 75:1459 76:603 77:2418 78:1835 79:3166 80:2065 81:1730 82:1509 83:1230 84:1510 85:2995 86:752 87:1956 88:1235 89:3604 90:611 91:7651 92:2017 93:2570 94:3539 95:3950 96:1325 97:331 98:1164 99:748 100:77 101:1298 102:2674 103:31025 104:4592 105:480 106:900 107:2553 108:962 109:4389 110:2062 111:3226 112:2044 113:1489 114:1623 115:2012 116:1898 117:2564 118:2280 119:1964 120:1740 121:1047 122:2586 123:2135 124:1575 125:2392 128:1256 129:1059 130:993 131:2002 132:832 133:421 134:1902 135:300 136:864 137:936 138:2544 139:1524 140:1193 141:1465 142:1422 143:1501 144:1187 145:356 146:1901 147:1561 148:2294 149:1936 150:871 151:1144 152:1958 153:484 154:4241 155:1418 156:1678 157:1287 158:1047 159:2265 160:2532 161:1449 162:3540 163:1499 164:1578 165:1699 166:845 167:1728 168:3844 169:931 170:4606 171:884 172:3512 173:2922 174:1016 175:1159 176:3720 177:4625 178:3634 179:2176 180:2402 181:3404 182:3313 183:1930 184:2347 185:20138 186:4720 187:3872 188:4128 189:3405 190:9105 191:1493 192:10934 193:8821 194:7243 195:5123 196:3173 197:2375 198:5892 199:6065 200:7692 201:5831 202:10315 203:10171 204:4603 205:3510 206:3768 207:3395 208:4069 209:4840 210:4174 211:2387 212:4095 213:3532 214:1093 215:58 216:6585 217:2658 218:1266 219:407 220:1759 221:972 222:673 223:2125 End of report