IPv4 R&E Routing Table Report 23:05 GMT Mon 28 Aug, 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: 919969 Prefixes after maximum aggregation (per Origin AS): 350582 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 452081 Number of IPv4 prefixes with a valid ROA: 417661 Number of IPv4 prefixes with an invalid ROA: 717 Number of IPv4 prefixes with no ROA: 501591 Total ASes present in the Internet Routing Table: 74541 Prefixes per ASN: 12.34 Origin-only ASes present in the Internet Routing Table: 64119 Origin ASes announcing only one prefix: 26339 Transit ASes present in the Internet Routing Table: 10422 Transit-only ASes present in the Internet Routing Table: 440 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 139 Max AS path prepend of ASN ( 37447) 129 Prefixes from unregistered ASNs in the Routing Table: 996 Number of instances of unregistered ASNs: 998 Number of 32-bit ASNs allocated by the RIRs: 42516 Number of 32-bit ASNs visible in the Routing Table: 34939 Prefixes from 32-bit ASNs in the Routing Table: 173806 Number of bogon 32-bit ASNs visible in the Routing Table: 19 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 546 Number of addresses announced to Internet: 3055038976 Equivalent to 182 /8s, 24 /16s and 50 /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: 307560 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 240531 Total APNIC prefixes after maximum aggregation: 69673 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 234279 Unique aggregates announced from the APNIC address blocks: 98676 APNIC Region origin ASes present in the Internet Routing Table: 13507 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 4011 APNIC Region transit ASes present in the Internet Routing Table: 1802 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8894 Number of APNIC addresses announced to Internet: 772683520 Equivalent to 46 /8s, 14 /16s and 55 /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: 270569 Total ARIN prefixes after maximum aggregation: 123386 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 272693 Unique aggregates announced from the ARIN address blocks: 131019 ARIN Region origin ASes present in the Internet Routing Table: 19053 ARIN Prefixes per ASN: 14.31 ARIN Region origin ASes announcing only one prefix: 6984 ARIN Region transit ASes present in the Internet Routing Table: 1883 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4818 Number of ARIN addresses announced to Internet: 1279473408 Equivalent to 76 /8s, 67 /16s and 55 /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: 259690 Total RIPE prefixes after maximum aggregation: 122527 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 256484 Unique aggregates announced from the RIPE address blocks: 159864 RIPE Region origin ASes present in the Internet Routing Table: 28381 RIPE Prefixes per ASN: 9.04 RIPE Region origin ASes announcing only one prefix: 12042 RIPE Region transit ASes present in the Internet Routing Table: 3902 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: 11289 Number of RIPE addresses announced to Internet: 716319744 Equivalent to 42 /8s, 178 /16s and 44 /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: 118221 Total LACNIC prefixes after maximum aggregation: 28401 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 117241 Unique aggregates announced from the LACNIC address blocks: 49332 LACNIC Region origin ASes present in the Internet Routing Table: 11007 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2329 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8823 Number of LACNIC addresses announced to Internet: 178548992 Equivalent to 10 /8s, 164 /16s and 113 /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: 29962 Total AfriNIC prefixes after maximum aggregation: 5897 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 38726 Unique aggregates announced from the AfriNIC address blocks: 12735 AfriNIC Region origin ASes present in the Internet Routing Table: 1765 AfriNIC Prefixes per ASN: 21.94 AfriNIC Region origin ASes announcing only one prefix: 611 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 5.7 Max AfriNIC Region AS path length visible: 139 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1115 Number of AfriNIC addresses announced to Internet: 107554816 Equivalent to 6 /8s, 105 /16s and 40 /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 9514 8729 40 CHINAMOBILE-CN China Mobile Communicati 7545 5708 783 687 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4346 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3733 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3595 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3336 1840 97 VNPT-AS-VN VNPT Corp, VN 9498 2855 498 249 BBIL-AP BHARTI Airtel Ltd., IN 24560 2489 847 403 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2305 11270 588 KIXS-AS-KR Korea Telecom, KR 4755 2184 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 8925 10969 3263 AMAZON-02, US 11492 4524 300 643 CABLEONE, US 7155 4178 288 100 VIASAT-SP-BACKBONE, US 22773 3561 3041 313 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3526 1319 66 SHAW, CA 749 3146 54960 2398 DNIC-AS-00749, US 16625 3056 1476 2305 AKAMAI-AS, US 367 2968 3826 1391 DNIC-ASBLK-00306-00371, US 396982 2687 3596 387 GOOGLE-CLOUD-PLATFORM, US 7018 2517 23945 1535 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 7336 1713 145 UNI2-AS, ES 39891 4897 290 61 ALJAWWALSTC-AS, SA 20940 4068 3398 154 AKAMAI-ASN1, NL 8551 3457 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2910 2296 914 ROSTELECOM-AS, RU 9009 2656 246 1375 M247, RO 34984 2328 362 594 TELLCOM-AS, TR 58224 1747 931 524 TCI, IR 13188 1606 100 27 TRIOLAN, UA 61317 1513 101 1178 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 11719 3360 606 UNINET, MX 10620 3535 506 849 Telmex Colombia S.A., CO 13999 2453 366 645 Mega Cable, S.A. de C.V., MX 11830 1997 369 64 Instituto Costarricense de Electricidad 28573 1316 2324 233 Claro NXT Telecomunicacoes Ltda, BR 6503 1301 344 509 Axtel, S.A.B. de C.V., MX 3816 1289 757 188 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1116 181 435 Techtel LMDS Comunicaciones Interactiva 6147 1113 370 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 1594 393 19 LINKdotNET-AS, EG 24835 1478 533 27 RAYA-AS, EG 36992 1340 1518 281 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1049 67 45 ORANGE-COTE-IVOIRE, CI 36935 902 520 35 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 523 54 48 WANANCHI-, KE 24757 479 73 5 EthioNet-AS, ET 37342 466 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 11719 3360 606 UNINET, MX 9808 9514 8729 40 CHINAMOBILE-CN China Mobile Communicati 16509 8925 10969 3263 AMAZON-02, US 12479 7336 1713 145 UNI2-AS, ES 7545 5708 783 687 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 290 61 ALJAWWALSTC-AS, SA 11492 4524 300 643 CABLEONE, US 18403 4346 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4178 288 100 VIASAT-SP-BACKBONE, US 20940 4068 3398 154 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 9514 9474 CHINAMOBILE-CN China Mobile Communications Grou 12479 7336 7191 UNI2-AS, ES 16509 8925 5662 AMAZON-02, US 7545 5708 5021 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4897 4836 ALJAWWALSTC-AS, SA 18403 4346 4321 FPT-AS-AP FPT Telecom Company, VN 7155 4178 4078 VIASAT-SP-BACKBONE, US 20940 4068 3914 AKAMAI-ASN1, NL 11492 4524 3881 CABLEONE, US 7552 3733 3713 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 23.176.160.0/24 Origin: 397327 RESERVED, ZZ 23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US 36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road, 36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin 41.57.124.0/22 Origin: 37442 RESERVED, ZZ 41.57.124.0/22 Transit: 37204 TELONE, ZW 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 /11:102 /12:298 /13:576 /14:1194 /15:2097 /16:13463 /17:8191 /18:13706 /19:24796 /20:43328 /21:50959 /22:109357 /23:98593 /24:553232 /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 6422 7336 UNI2-AS, ES 8151 5741 11719 UNINET, MX 39891 3632 4897 ALJAWWALSTC-AS, SA 11492 3434 4524 CABLEONE, US 6327 3337 3526 SHAW, CA 7155 3124 4178 VIASAT-SP-BACKBONE, US 8551 2925 3457 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 2607 3561 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2150 2491 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2098 3535 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) ---------------------------------------------- 1:2229 2:1379 3:235 4:5 5:4548 6:138 7:6 8:1511 9:1 11:172 12:1507 13:368 14:2299 15:302 16:192 17:371 18:624 20:280 21:4 22:188 23:6373 24:2484 25:6 27:2547 29:19 31:2531 32:78 34:26 35:115 36:1989 37:4562 38:5169 39:867 40:147 41:4037 42:2098 43:2285 44:322 45:16527 46:4259 47:366 49:1794 50:1855 51:591 52:1595 54:392 55:957 56:8 57:122 58:1790 59:1104 60:997 61:2393 62:2685 63:1919 64:5550 65:2331 66:4898 67:3019 68:1338 69:4131 70:1191 71:656 72:2957 74:2607 75:1563 76:616 77:2363 78:1835 79:2985 80:2125 81:1821 82:1459 83:1276 84:1523 85:2970 86:754 87:2002 88:1172 89:3837 90:617 91:7798 92:2066 93:2596 94:3533 95:4005 96:1293 97:317 98:1079 99:734 100:90 101:1310 102:2943 103:31878 104:4557 105:552 106:880 107:2587 108:1125 109:4243 110:2110 111:3135 112:2058 113:1741 114:1649 115:1985 116:1911 117:2516 118:2688 119:1980 120:1771 121:1086 122:2566 123:2137 124:1564 125:2489 128:1405 129:912 130:1024 131:1949 132:845 133:418 134:1786 135:306 136:914 137:972 138:2632 139:1562 140:1231 141:1295 142:1476 143:1486 144:978 145:345 146:1947 147:1604 148:2425 149:2149 150:869 151:1230 152:1865 153:515 154:4828 155:1374 156:1927 157:1323 158:1078 159:2221 160:2611 161:1584 162:3514 163:1579 164:1700 165:1847 166:951 167:1712 168:3827 169:904 170:4606 171:884 172:3661 173:2969 174:987 175:1184 176:3752 177:4484 178:3540 179:2102 180:2440 181:3427 182:3195 183:2001 184:2279 185:20515 186:4746 187:4101 188:4133 189:3762 190:9227 191:1329 192:10882 193:8935 194:7289 195:5184 196:3118 197:2429 198:5932 199:6067 200:7863 201:6037 202:10236 203:9972 204:4529 205:3659 206:4255 207:3379 208:4112 209:4886 210:4178 211:2443 212:4244 213:3409 214:1091 215:59 216:6636 217:2773 218:1265 219:405 220:1798 221:980 222:662 223:2145 End of report