IPv4 R&E Routing Table Report 23:05 GMT Tue 14 Feb, 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: 904744 Prefixes after maximum aggregation (per Origin AS): 344864 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445951 Number of IPv4 prefixes with a valid ROA: 373559 Number of IPv4 prefixes with an invalid ROA: 1525 Number of IPv4 prefixes with no ROA: 529660 Total ASes present in the Internet Routing Table: 73919 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63466 Origin ASes announcing only one prefix: 26104 Transit ASes present in the Internet Routing Table: 10453 Transit-only ASes present in the Internet Routing Table: 435 Paths with bogon ASNs present in the IPv4 Routing Table: 26 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1018 Number of instances of unregistered ASNs: 1028 Number of 32-bit ASNs allocated by the RIRs: 41188 Number of 32-bit ASNs visible in the Routing Table: 34090 Prefixes from 32-bit ASNs in the Routing Table: 166501 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 556 Number of addresses announced to Internet: 3060736256 Equivalent to 182 /8s, 111 /16s and 33 /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: 304596 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234062 Total APNIC prefixes after maximum aggregation: 68200 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229018 Unique aggregates announced from the APNIC address blocks: 97812 APNIC Region origin ASes present in the Internet Routing Table: 13197 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3819 APNIC Region transit ASes present in the Internet Routing Table: 1770 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8537 Number of APNIC addresses announced to Internet: 772194816 Equivalent to 46 /8s, 6 /16s and 194 /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: 266352 Total ARIN prefixes after maximum aggregation: 121062 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268388 Unique aggregates announced from the ARIN address blocks: 130113 ARIN Region origin ASes present in the Internet Routing Table: 19005 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6997 ARIN Region transit ASes present in the Internet Routing Table: 1899 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4724 Number of ARIN addresses announced to Internet: 1285429248 Equivalent to 76 /8s, 158 /16s and 24 /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: 256816 Total RIPE prefixes after maximum aggregation: 120870 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253207 Unique aggregates announced from the RIPE address blocks: 156603 RIPE Region origin ASes present in the Internet Routing Table: 28205 RIPE Prefixes per ASN: 8.98 RIPE Region origin ASes announcing only one prefix: 12017 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11000 Number of RIPE addresses announced to Internet: 718262016 Equivalent to 42 /8s, 207 /16s and 207 /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: 117142 Total LACNIC prefixes after maximum aggregation: 28241 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116346 Unique aggregates announced from the LACNIC address blocks: 48934 LACNIC Region origin ASes present in the Internet Routing Table: 10970 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2670 LACNIC Region transit ASes present in the Internet Routing Table: 2277 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8765 Number of LACNIC addresses announced to Internet: 176430336 Equivalent to 10 /8s, 132 /16s and 29 /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: 29354 Total AfriNIC prefixes after maximum aggregation: 5748 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37229 Unique aggregates announced from the AfriNIC address blocks: 12055 AfriNIC Region origin ASes present in the Internet Routing Table: 1718 AfriNIC Prefixes per ASN: 21.67 AfriNIC Region origin ASes announcing only one prefix: 601 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1064 Number of AfriNIC addresses announced to Internet: 108090112 Equivalent to 6 /8s, 113 /16s and 83 /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 9440 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5840 788 707 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3660 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3542 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3376 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2767 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 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 7994 10738 2845 AMAZON-02, US 11492 4536 300 598 CABLEONE, US 7155 3899 265 33 VIASAT-SP-BACKBONE, US 22773 3652 3064 286 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3321 1677 2425 AKAMAI-AS, US 749 3038 50571 2305 DNIC-AS-00749, US 396982 2604 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2596 24127 1578 ATT-INTERNET4, US 30036 2546 365 392 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 7032 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4009 3399 167 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 910 ROSTELECOM-AS, RU 9009 2650 253 1377 M247, RO 34984 2266 359 609 TELLCOM-AS, TR 6849 2251 339 19 UKRTELNET, UA 58224 1847 949 543 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 11124 3348 587 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2245 373 602 Mega Cable, S.A. de C.V., MX 28573 1352 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1093 179 457 Techtel LMDS Comunicaciones Interactiva 26615 1018 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 24835 1542 533 30 RAYA-AS, EG 24863 1505 393 21 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 998 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 524 53 44 WANANCHI-, KE 24757 495 73 5 EthioNet-AS, ET 37342 494 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 11124 3348 587 Uninet S.A. de C.V., MX 9808 9440 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7994 10738 2845 AMAZON-02, US 12479 7032 1706 146 UNI2-AS, ES 7545 5840 788 707 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4536 300 598 CABLEONE, US 20940 4009 3399 167 AKAMAI-ASN1, NL 7155 3899 265 33 VIASAT-SP-BACKBONE, US 8551 3894 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 9440 9392 CHINAMOBILE-CN China Mobile Communications Grou 12479 7032 6886 UNI2-AS, ES 16509 7994 5149 AMAZON-02, US 7545 5840 5133 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4536 3938 CABLEONE, US 7155 3899 3866 VIASAT-SP-BACKBONE, US 8551 3894 3857 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4009 3842 AKAMAI-ASN1, NL 7552 3660 3639 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 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 3356 LEVEL3, 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://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 /13:577 /14:1199 /15:2073 /16:13426 /17:8199 /18:13740 /19:24803 /20:42894 /21:50928 /22:108902 /23:96618 /24:540907 /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 6092 7032 UNI2-AS, ES 8151 5128 11124 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4536 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 2988 3899 VIASAT-SP-BACKBONE, US 22773 2705 3652 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2203 2546 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2096 2251 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1628 2:1226 3:168 4:5 5:4332 6:113 7:5 8:1515 9:1 11:172 12:1586 13:393 14:2337 15:290 16:103 17:365 18:395 20:248 21:4 22:188 23:6046 24:2495 25:4 27:2525 29:19 31:2509 32:105 34:8 35:104 36:1914 37:4594 38:4152 39:826 40:154 41:4034 42:1056 43:2304 44:303 45:16348 46:4186 47:372 49:1733 50:1829 51:383 52:1570 54:398 55:848 56:8 57:88 58:1673 59:1110 60:987 61:2456 62:2628 63:1931 64:5660 65:2320 66:4920 67:3043 68:1348 69:4140 70:1250 71:661 72:2987 74:2590 75:1458 76:601 77:2382 78:1839 79:3179 80:2085 81:1720 82:1490 83:1234 84:1510 85:2986 86:757 87:1959 88:1232 89:3594 90:603 91:7653 92:2007 93:2595 94:3542 95:3950 96:1334 97:347 98:1161 99:743 100:75 101:1299 102:2603 103:30890 104:4489 105:485 106:844 107:2528 108:911 109:4393 110:2074 111:3293 112:2035 113:1483 114:1610 115:2013 116:1873 117:2552 118:2294 119:1923 120:1738 121:1049 122:2586 123:2140 124:1559 125:2330 128:1266 129:1054 130:977 131:1983 132:831 133:406 134:1904 135:314 136:862 137:921 138:2541 139:1542 140:1182 141:1468 142:1415 143:1476 144:1205 145:351 146:1862 147:1555 148:2265 149:1898 150:867 151:1141 152:1950 153:481 154:3898 155:1414 156:1671 157:1297 158:1005 159:2259 160:2539 161:1410 162:3511 163:1517 164:1555 165:1670 166:830 167:1738 168:3817 169:916 170:4571 171:881 172:3515 173:2962 174:1027 175:1158 176:3701 177:4553 178:3576 179:2155 180:2411 181:3398 182:3245 183:1929 184:2336 185:20015 186:4666 187:3931 188:4095 189:3496 190:9092 191:1456 192:10930 193:8814 194:7235 195:5108 196:3128 197:2411 198:5891 199:6083 200:7663 201:5887 202:10227 203:9986 204:4599 205:3503 206:3794 207:3378 208:4065 209:4821 210:4170 211:2384 212:4074 213:3547 214:1092 215:55 216:6591 217:2640 218:1256 219:400 220:1765 221:969 222:665 223:2120 End of report