IPv4 R&E Routing Table Report 23:05 GMT Sun 16 Oct, 2022 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: 896174 Prefixes after maximum aggregation (per Origin AS): 340782 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 439729 Number of IPv4 prefixes with a valid ROA: 354833 Number of IPv4 prefixes with an invalid ROA: 1604 Number of IPv4 prefixes with no ROA: 539737 Total ASes present in the Internet Routing Table: 73511 Prefixes per ASN: 12.19 Origin-only ASes present in the Internet Routing Table: 63165 Origin ASes announcing only one prefix: 26003 Transit ASes present in the Internet Routing Table: 10346 Transit-only ASes present in the Internet Routing Table: 401 Paths with bogon ASNs present in the IPv4 Routing Table: 31 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 80 Max AS path prepend of ASN (267590) 75 Prefixes from unregistered ASNs in the Routing Table: 1101 Number of instances of unregistered ASNs: 1104 Number of 32-bit ASNs allocated by the RIRs: 40404 Number of 32-bit ASNs visible in the Routing Table: 33420 Prefixes from 32-bit ASNs in the Routing Table: 160754 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 544 Number of addresses announced to Internet: 3063267584 Equivalent to 182 /8s, 149 /16s and 193 /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: 301370 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231789 Total APNIC prefixes after maximum aggregation: 67147 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 226743 Unique aggregates announced from the APNIC address blocks: 96529 APNIC Region origin ASes present in the Internet Routing Table: 12942 APNIC Prefixes per ASN: 17.52 APNIC Region origin ASes announcing only one prefix: 3736 APNIC Region transit ASes present in the Internet Routing Table: 1752 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8241 Number of APNIC addresses announced to Internet: 773316864 Equivalent to 46 /8s, 23 /16s and 225 /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: 265215 Total ARIN prefixes after maximum aggregation: 120749 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 266410 Unique aggregates announced from the ARIN address blocks: 128586 ARIN Region origin ASes present in the Internet Routing Table: 18985 ARIN Prefixes per ASN: 14.03 ARIN Region origin ASes announcing only one prefix: 6949 ARIN Region transit ASes present in the Internet Routing Table: 1872 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: 4627 Number of ARIN addresses announced to Internet: 1289593344 Equivalent to 76 /8s, 221 /16s and 162 /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: 253475 Total RIPE prefixes after maximum aggregation: 118731 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 250344 Unique aggregates announced from the RIPE address blocks: 154006 RIPE Region origin ASes present in the Internet Routing Table: 28146 RIPE Prefixes per ASN: 8.89 RIPE Region origin ASes announcing only one prefix: 12008 RIPE Region transit ASes present in the Internet Routing Table: 3982 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10830 Number of RIPE addresses announced to Internet: 716496896 Equivalent to 42 /8s, 180 /16s and 224 /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: 115859 Total LACNIC prefixes after maximum aggregation: 27767 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 115433 Unique aggregates announced from the LACNIC address blocks: 48258 LACNIC Region origin ASes present in the Internet Routing Table: 10936 LACNIC Prefixes per ASN: 10.56 LACNIC Region origin ASes announcing only one prefix: 2711 LACNIC Region transit ASes present in the Internet Routing Table: 2234 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 80 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8700 Number of LACNIC addresses announced to Internet: 175782912 Equivalent to 10 /8s, 122 /16s and 60 /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: 28735 Total AfriNIC prefixes after maximum aggregation: 5578 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 36700 Unique aggregates announced from the AfriNIC address blocks: 11908 AfriNIC Region origin ASes present in the Internet Routing Table: 1693 AfriNIC Prefixes per ASN: 21.68 AfriNIC Region origin ASes announcing only one prefix: 599 AfriNIC Region transit ASes present in the Internet Routing Table: 326 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1022 Number of AfriNIC addresses announced to Internet: 107774208 Equivalent to 6 /8s, 108 /16s and 129 /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 9061 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5929 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3594 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3523 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3383 1877 66 VNPT-AS-VN VNPT Corp, VN 9498 2471 499 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2288 11251 595 KIXS-AS-KR Korea Telecom, KR 24560 2237 852 412 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2144 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2139 425 217 TATACOMM-AS TATA Communications formerl 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 7363 10582 2890 AMAZON-02, US 11492 4603 305 518 CABLEONE, US 7155 3898 265 32 VIASAT-SP-BACKBONE, US 22773 3769 3066 348 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3526 1835 2538 AKAMAI-AS, US 6327 3493 1319 64 SHAW, CA 749 3030 50696 2297 DNIC-AS-00749, US 30036 2601 368 251 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2577 24151 1580 ATT-INTERNET4, US 396982 2552 3479 345 GOOGLE-CLOUD-PLATFORM, 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 6884 1730 144 UNI2-AS, ES 20940 4100 3399 172 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3991 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2290 912 ROSTELECOM-AS, RU 9009 2616 252 1344 M247, RO 6849 2488 339 20 UKRTELNET, UA 34984 2242 357 615 TELLCOM-AS, TR 58224 1789 934 545 TCI, IR 13188 1610 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 10890 3337 600 Uninet S.A. de C.V., MX 10620 3470 510 844 Telmex Colombia S.A., CO 11830 2301 369 64 Instituto Costarricense de Electricidad 13999 2058 335 529 Mega Cable, S.A. de C.V., MX 28573 1350 2328 264 Claro NXT Telecomunicacoes Ltda, BR 6503 1295 338 521 Axtel, S.A.B. de C.V., MX 3816 1285 722 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1089 181 464 Techtel LMDS Comunicaciones Interactiva 6147 1078 369 22 Telefonica del Peru S.A.A., PE 26615 986 2466 43 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 1569 393 21 LINKdotNET-AS, EG 24835 1518 521 31 RAYA-AS, EG 36992 1349 1519 270 ETISALAT-MISR, EG 36903 1260 550 99 MT-MPLS, MA 29571 1015 68 32 ORANGE-COTE-IVOIRE, CI 36935 815 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 526 53 42 WANANCHI-, KE 37342 488 32 1 MOVITEL, MZ 23889 399 231 14 MauritiusTelecom, MU 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 10890 3337 600 Uninet S.A. de C.V., MX 9808 9061 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7363 10582 2890 AMAZON-02, US 12479 6884 1730 144 UNI2-AS, ES 7545 5929 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4603 305 518 CABLEONE, US 20940 4100 3399 172 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3991 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3898 265 32 VIASAT-SP-BACKBONE, US 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 9061 9014 CHINAMOBILE-CN China Mobile Communications Grou 12479 6884 6740 UNI2-AS, ES 7545 5929 5235 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7363 4473 AMAZON-02, US 11492 4603 4085 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3991 3953 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4100 3928 AKAMAI-ASN1, NL 7155 3898 3866 VIASAT-SP-BACKBONE, US 7552 3594 3574 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 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 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.158.240.0/24 Origin: 13465 UNASSIGNED 23.158.240.0/24 Transit: 33185 HIVE-DATA-CENTER, CA 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 24.48.128.0/19 Origin: 29866 OPTICALTEL, US 24.48.128.0/19 Transit: 3257 GTT-BACKBONE GTT, US 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 /11:100 /12:294 /13:586 /14:1197 /15:2076 /16:13472 /17:8302 /18:13829 /19:24812 /20:43039 /21:50818 /22:108081 /23:95856 /24:533638 /25:0 /26:1 /27:1 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5894 6884 UNI2-AS, ES 8151 4781 10890 Uninet S.A. de C.V., MX 11492 3510 4603 CABLEONE, US 8551 3455 3991 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3302 3493 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2987 3898 VIASAT-SP-BACKBONE, US 22773 2783 3769 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2345 2488 UKRTELNET, UA 30036 2259 2601 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1896 2:1030 3:166 4:5 5:3937 6:116 7:6 8:1551 9:1 11:173 12:1623 13:338 14:2366 15:273 16:69 17:362 18:337 20:241 21:4 22:188 23:5950 24:2459 25:6 27:2666 29:19 31:2448 32:91 34:7 35:90 36:1894 37:4484 38:3621 39:754 40:159 41:3955 42:1168 43:2266 44:294 45:16125 46:4187 47:377 49:1704 50:1927 51:242 52:1490 54:388 55:846 56:8 57:78 58:1721 59:1109 60:991 61:2365 62:2538 63:1963 64:5603 65:2314 66:4832 67:2959 68:1318 69:4154 70:1301 71:678 72:2993 74:2641 75:1474 76:590 77:2232 78:1825 79:3144 80:2049 81:1666 82:1530 83:1219 84:1406 85:2950 86:725 87:1916 88:1164 89:3427 90:545 91:7586 92:2064 93:2542 94:3517 95:3844 96:1347 97:347 98:1167 99:737 100:78 101:1295 102:2361 103:30161 104:4539 105:474 106:886 107:2535 108:892 109:4340 110:2003 111:3270 112:2047 113:1485 114:1512 115:1988 116:1890 117:2484 118:2324 119:1842 120:1705 121:1012 122:2534 123:2100 124:1515 125:2117 128:1184 129:965 130:960 131:2007 132:814 133:379 134:1902 135:291 136:878 137:884 138:2519 139:1514 140:1122 141:1479 142:1377 143:1393 144:1195 145:348 146:1858 147:1523 148:2240 149:1814 150:878 151:1119 152:1954 153:469 154:3747 155:1421 156:1638 157:1298 158:1040 159:2176 160:2560 161:1367 162:3508 163:1417 164:1659 165:1666 166:804 167:1721 168:3745 169:877 170:4533 171:850 172:3456 173:3102 174:1025 175:1152 176:3558 177:4719 178:3551 179:2092 180:2367 181:3264 182:3208 183:1941 184:2355 185:19826 186:4557 187:3969 188:4038 189:3443 190:8961 191:1447 192:10968 193:8731 194:7141 195:5049 196:3057 197:2461 198:5959 199:6041 200:7538 201:5833 202:10134 203:10013 204:4554 205:3502 206:3816 207:3383 208:4080 209:4749 210:4119 211:2323 212:4015 213:3548 214:1093 215:53 216:6459 217:2618 218:1271 219:404 220:1786 221:922 222:652 223:1975 End of report