IPv4 R&E Routing Table Report 23:05 GMT Wed 20 Sep, 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: 922895 Prefixes after maximum aggregation (per Origin AS): 351853 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 453055 Number of IPv4 prefixes with a valid ROA: 420308 Number of IPv4 prefixes with an invalid ROA: 1609 Number of IPv4 prefixes with no ROA: 500978 Total ASes present in the Internet Routing Table: 74640 Prefixes per ASN: 12.36 Origin-only ASes present in the Internet Routing Table: 64211 Origin ASes announcing only one prefix: 26346 Transit ASes present in the Internet Routing Table: 10429 Transit-only ASes present in the Internet Routing Table: 443 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 107 Max AS path prepend of ASN ( 37447) 103 Prefixes from unregistered ASNs in the Routing Table: 1012 Number of instances of unregistered ASNs: 1016 Number of 32-bit ASNs allocated by the RIRs: 42645 Number of 32-bit ASNs visible in the Routing Table: 35058 Prefixes from 32-bit ASNs in the Routing Table: 174896 Number of bogon 32-bit ASNs visible in the Routing Table: 87 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 551 Number of addresses announced to Internet: 3053784576 Equivalent to 182 /8s, 5 /16s and 14 /24s Percentage of available address space announced: 82.5 Percentage of allocated address space announced: 82.5 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: 308099 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 241276 Total APNIC prefixes after maximum aggregation: 70093 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 234920 Unique aggregates announced from the APNIC address blocks: 98794 APNIC Region origin ASes present in the Internet Routing Table: 13557 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 4035 APNIC Region transit ASes present in the Internet Routing Table: 1813 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8946 Number of APNIC addresses announced to Internet: 772239872 Equivalent to 46 /8s, 7 /16s and 114 /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, 131072-153913 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: 271330 Total ARIN prefixes after maximum aggregation: 123480 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 274443 Unique aggregates announced from the ARIN address blocks: 131649 ARIN Region origin ASes present in the Internet Routing Table: 19040 ARIN Prefixes per ASN: 14.41 ARIN Region origin ASes announcing only one prefix: 6947 ARIN Region transit ASes present in the Internet Routing Table: 1881 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4814 Number of ARIN addresses announced to Internet: 1278061824 Equivalent to 76 /8s, 45 /16s and 173 /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: 260996 Total RIPE prefixes after maximum aggregation: 123254 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 256650 Unique aggregates announced from the RIPE address blocks: 160016 RIPE Region origin ASes present in the Internet Routing Table: 28394 RIPE Prefixes per ASN: 9.04 RIPE Region origin ASes announcing only one prefix: 12050 RIPE Region transit ASes present in the Internet Routing Table: 3903 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11325 Number of RIPE addresses announced to Internet: 716852480 Equivalent to 42 /8s, 186 /16s and 77 /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 196608-216475 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: 118240 Total LACNIC prefixes after maximum aggregation: 28339 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 117190 Unique aggregates announced from the LACNIC address blocks: 49282 LACNIC Region origin ASes present in the Internet Routing Table: 11023 LACNIC Prefixes per ASN: 10.63 LACNIC Region origin ASes announcing only one prefix: 2689 LACNIC Region transit ASes present in the Internet Routing Table: 2323 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8842 Number of LACNIC addresses announced to Internet: 178406912 Equivalent to 10 /8s, 162 /16s and 70 /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: 30041 Total AfriNIC prefixes after maximum aggregation: 5982 AfriNIC Deaggregation factor: 5.02 Prefixes being announced from the AfriNIC address blocks: 39141 Unique aggregates announced from the AfriNIC address blocks: 12856 AfriNIC Region origin ASes present in the Internet Routing Table: 1788 AfriNIC Prefixes per ASN: 21.89 AfriNIC Region origin ASes announcing only one prefix: 625 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 5.7 Max AfriNIC Region AS path length visible: 107 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1131 Number of AfriNIC addresses announced to Internet: 107784960 Equivalent to 6 /8s, 108 /16s and 171 /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 9482 8729 41 CHINAMOBILE-CN China Mobile Communicati 7545 5727 785 690 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4281 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3735 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3593 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3320 1824 97 VNPT-AS-VN VNPT Corp, VN 9498 3151 498 250 BBIL-AP BHARTI Airtel Ltd., IN 24560 2514 849 389 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2289 11269 603 KIXS-AS-KR Korea Telecom, KR 4755 2185 442 201 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 9095 10996 3272 AMAZON-02, US 11492 4529 300 669 CABLEONE, US 7155 4177 288 98 VIASAT-SP-BACKBONE, US 6327 3541 1319 66 SHAW, CA 22773 3540 3039 301 ASN-CXA-ALL-CCI-22773-RDC, US 749 3151 54959 2403 DNIC-AS-00749, US 16625 3010 1437 2286 AKAMAI-AS, US 367 2975 3828 1410 DNIC-ASBLK-00306-00371, US 396982 2698 3597 392 GOOGLE-CLOUD-PLATFORM, US 7018 2499 23674 1558 ATT-INTERNET4, 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 7397 1713 145 UNI2-AS, ES 39891 4897 290 61 ALJAWWALSTC-AS, SA 20940 4046 3398 152 AKAMAI-ASN1, NL 8551 3448 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2905 2296 913 ROSTELECOM-AS, RU 9009 2729 254 1395 M247, RO 34984 2334 362 592 TELLCOM-AS, TR 58224 1747 928 513 TCI, IR 13188 1606 100 27 TRIOLAN, UA 61317 1473 98 1142 ASDETUK www.heficed.com, US 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 11841 3368 601 UNINET, MX 10620 3542 506 851 Telmex Colombia S.A., CO 13999 2401 334 623 Mega Cable, S.A. de C.V., MX 11830 2003 369 64 Instituto Costarricense de Electricidad 28573 1326 2324 232 Claro NXT Telecomunicacoes Ltda, BR 6503 1301 344 509 Axtel, S.A.B. de C.V., MX 3816 1295 764 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1119 182 427 Techtel LMDS Comunicaciones Interactiva 6147 1112 369 22 Telefonica del Peru S.A.A., PE 26615 1035 2501 49 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 1614 393 19 LINKdotNET-AS, EG 24835 1546 549 28 RAYA-AS, EG 36992 1360 1518 280 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1046 67 45 ORANGE-COTE-IVOIRE, CI 36935 936 521 44 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 521 55 49 WANANCHI-, KE 37342 489 32 1 MOVITEL, MZ 24757 480 73 5 EthioNet-AS, ET 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 11841 3368 601 UNINET, MX 9808 9482 8729 41 CHINAMOBILE-CN China Mobile Communicati 16509 9095 10996 3272 AMAZON-02, US 12479 7397 1713 145 UNI2-AS, ES 7545 5727 785 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 290 61 ALJAWWALSTC-AS, SA 11492 4529 300 669 CABLEONE, US 18403 4281 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4177 288 98 VIASAT-SP-BACKBONE, US 20940 4046 3398 152 AKAMAI-ASN1, NL 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 9482 9441 CHINAMOBILE-CN China Mobile Communications Grou 12479 7397 7252 UNI2-AS, ES 16509 9095 5823 AMAZON-02, US 7545 5727 5037 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 4836 ALJAWWALSTC-AS, SA 18403 4281 4256 FPT-AS-AP FPT Telecom Company, VN 7155 4177 4079 VIASAT-SP-BACKBONE, US 20940 4046 3894 AKAMAI-ASN1, NL 11492 4529 3860 CABLEONE, US 7552 3735 3715 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 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.162.24.0/24 Origin: 7018 ATT-INTERNET4, US 23.162.24.0/24 Transit: 6453 AS6453, US 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 23.189.192.0/24 Origin: 27593 RESERVED, ZZ 23.189.192.0/24 Transit: 174 COGENT-174, 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 /9:14 /10:38 /11:101 /12:297 /13:575 /14:1195 /15:2096 /16:13443 /17:8198 /18:13696 /19:24738 /20:43194 /21:50911 /22:109582 /23:98681 /24:556111 /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 6483 7397 UNI2-AS, ES 8151 5867 11841 UNINET, MX 39891 3632 4897 ALJAWWALSTC-AS, SA 11492 3441 4529 CABLEONE, US 6327 3352 3541 SHAW, CA 7155 3123 4177 VIASAT-SP-BACKBONE, US 8551 2922 3448 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2590 3540 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2152 2494 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2105 3542 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) ---------------------------------------------- 1:2200 2:1407 3:264 4:5 5:4509 6:135 7:6 8:1500 9:1 11:172 12:1512 13:367 14:2317 15:303 16:192 17:368 18:647 20:286 21:4 22:188 23:6396 24:2492 25:2 27:2581 29:19 31:2525 32:74 34:27 35:114 36:1999 37:4526 38:5351 39:870 40:146 41:4017 42:2063 43:2272 44:321 45:16555 46:4276 47:370 49:1824 50:1882 51:597 52:1596 54:394 55:958 56:5 57:123 58:1798 59:1118 60:1001 61:2539 62:2689 63:1911 64:5656 65:2353 66:4903 67:3030 68:1339 69:4142 70:1190 71:663 72:2936 74:2597 75:1561 76:617 77:2293 78:1826 79:2984 80:2109 81:1838 82:1491 83:1290 84:1527 85:3051 86:766 87:2007 88:1167 89:3866 90:621 91:7806 92:2064 93:2612 94:3512 95:4016 96:1299 97:314 98:1080 99:735 100:90 101:1318 102:2872 103:32034 104:4624 105:575 106:894 107:2684 108:1120 109:4211 110:2127 111:3139 112:2056 113:1745 114:1667 115:1997 116:1888 117:2532 118:2694 119:1957 120:1776 121:1122 122:2588 123:2150 124:1574 125:2509 128:1418 129:913 130:1034 131:1968 132:858 133:408 134:1786 135:306 136:972 137:973 138:2629 139:1578 140:1175 141:1315 142:1501 143:1557 144:1004 145:351 146:1935 147:1589 148:2430 149:2251 150:873 151:1229 152:1978 153:523 154:5109 155:1385 156:1934 157:1344 158:1084 159:2243 160:2610 161:1586 162:3536 163:1598 164:1687 165:1861 166:1063 167:1741 168:3721 169:885 170:4640 171:918 172:3744 173:2956 174:980 175:1183 176:3757 177:4442 178:3536 179:2132 180:2490 181:3514 182:3319 183:1996 184:2281 185:20575 186:4683 187:4203 188:4156 189:3847 190:9199 191:1357 192:10946 193:8953 194:7284 195:5205 196:3183 197:2441 198:5906 199:6114 200:7835 201:6022 202:10193 203:9986 204:4543 205:3682 206:4317 207:3402 208:4139 209:4890 210:4203 211:2439 212:4269 213:3399 214:1113 215:57 216:6684 217:2776 218:1267 219:404 220:1800 221:981 222:667 223:2144 End of report