IPv4 R&E Routing Table Report 23:05 GMT Wed 21 Dec, 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: 900901 Prefixes after maximum aggregation (per Origin AS): 343501 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 443716 Number of IPv4 prefixes with a valid ROA: 365450 Number of IPv4 prefixes with an invalid ROA: 1533 Number of IPv4 prefixes with no ROA: 533918 Total ASes present in the Internet Routing Table: 73764 Prefixes per ASN: 12.21 Origin-only ASes present in the Internet Routing Table: 63341 Origin ASes announcing only one prefix: 26082 Transit ASes present in the Internet Routing Table: 10423 Transit-only ASes present in the Internet Routing Table: 425 Paths with bogon ASNs present in the IPv4 Routing Table: 28 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: 991 Number of instances of unregistered ASNs: 991 Number of 32-bit ASNs allocated by the RIRs: 40950 Number of 32-bit ASNs visible in the Routing Table: 33834 Prefixes from 32-bit ASNs in the Routing Table: 164761 Number of bogon 32-bit ASNs visible in the Routing Table: 5 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 513 Number of addresses announced to Internet: 3064592896 Equivalent to 182 /8s, 169 /16s and 250 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 303138 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233180 Total APNIC prefixes after maximum aggregation: 67766 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 228085 Unique aggregates announced from the APNIC address blocks: 97315 APNIC Region origin ASes present in the Internet Routing Table: 13093 APNIC Prefixes per ASN: 17.42 APNIC Region origin ASes announcing only one prefix: 3815 APNIC Region transit ASes present in the Internet Routing Table: 1759 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8409 Number of APNIC addresses announced to Internet: 773062144 Equivalent to 46 /8s, 19 /16s and 254 /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: 266120 Total ARIN prefixes after maximum aggregation: 121257 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 267632 Unique aggregates announced from the ARIN address blocks: 129352 ARIN Region origin ASes present in the Internet Routing Table: 18994 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6975 ARIN Region transit ASes present in the Internet Routing Table: 1887 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: 4689 Number of ARIN addresses announced to Internet: 1287890688 Equivalent to 76 /8s, 195 /16s and 167 /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: 254790 Total RIPE prefixes after maximum aggregation: 119857 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 251596 Unique aggregates announced from the RIPE address blocks: 155729 RIPE Region origin ASes present in the Internet Routing Table: 28152 RIPE Prefixes per ASN: 8.94 RIPE Region origin ASes announcing only one prefix: 12017 RIPE Region transit ASes present in the Internet Routing Table: 3988 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: 10916 Number of RIPE addresses announced to Internet: 719278080 Equivalent to 42 /8s, 223 /16s and 80 /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: 117251 Total LACNIC prefixes after maximum aggregation: 28180 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116561 Unique aggregates announced from the LACNIC address blocks: 48897 LACNIC Region origin ASes present in the Internet Routing Table: 10998 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2272 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: 8767 Number of LACNIC addresses announced to Internet: 175961856 Equivalent to 10 /8s, 124 /16s and 247 /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: 28569 Total AfriNIC prefixes after maximum aggregation: 5690 AfriNIC Deaggregation factor: 5.02 Prefixes being announced from the AfriNIC address blocks: 36514 Unique aggregates announced from the AfriNIC address blocks: 12004 AfriNIC Region origin ASes present in the Internet Routing Table: 1715 AfriNIC Prefixes per ASN: 21.29 AfriNIC Region origin ASes announcing only one prefix: 599 AfriNIC Region transit ASes present in the Internet Routing Table: 333 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: 1053 Number of AfriNIC addresses announced to Internet: 108105728 Equivalent to 6 /8s, 113 /16s and 144 /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 9155 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5928 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3625 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3520 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3368 1874 94 VNPT-AS-VN VNPT Corp, VN 9498 2679 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2349 849 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2284 11250 589 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 217 TATACOMM-AS TATA Communications formerl 45090 2144 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 7735 10633 2919 AMAZON-02, US 11492 4546 301 565 CABLEONE, US 7155 3894 265 33 VIASAT-SP-BACKBONE, US 22773 3696 3065 324 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3520 1320 63 SHAW, CA 16625 3474 1802 2512 AKAMAI-AS, US 749 3026 50577 2293 DNIC-AS-00749, US 7018 2604 24130 1579 ATT-INTERNET4, US 396982 2574 3493 369 GOOGLE-CLOUD-PLATFORM, US 30036 2562 368 391 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 6958 1706 146 UNI2-AS, ES 39891 4492 264 57 ALJAWWALSTC-AS, SA 20940 4048 3399 175 AKAMAI-ASN1, NL 8551 3699 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2886 2290 906 ROSTELECOM-AS, RU 9009 2653 252 1361 M247, RO 34984 2255 358 611 TELLCOM-AS, TR 6849 2221 339 20 UKRTELNET, UA 58224 1773 928 538 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 10922 3340 593 Uninet S.A. de C.V., MX 10620 3466 507 852 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2186 357 581 Mega Cable, S.A. de C.V., MX 28573 1341 2328 258 Claro NXT Telecomunicacoes Ltda, BR 6503 1296 339 518 Axtel, S.A.B. de C.V., MX 3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1153 370 22 Telefonica del Peru S.A.A., PE 11664 1140 186 468 Techtel LMDS Comunicaciones Interactiva 26615 991 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 1513 393 21 LINKdotNET-AS, EG 24835 1508 511 28 RAYA-AS, EG 36992 1321 1518 274 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1011 67 43 ORANGE-COTE-IVOIRE, CI 36935 705 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 527 53 45 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 359 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 10922 3340 593 Uninet S.A. de C.V., MX 9808 9155 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7735 10633 2919 AMAZON-02, US 12479 6958 1706 146 UNI2-AS, ES 7545 5928 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4546 301 565 CABLEONE, US 39891 4492 264 57 ALJAWWALSTC-AS, SA 20940 4048 3399 175 AKAMAI-ASN1, NL 7155 3894 265 33 VIASAT-SP-BACKBONE, US 8551 3699 374 38 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 9155 9108 CHINAMOBILE-CN China Mobile Communications Grou 12479 6958 6812 UNI2-AS, ES 7545 5928 5237 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7735 4816 AMAZON-02, US 39891 4492 4435 ALJAWWALSTC-AS, SA 11492 4546 3981 CABLEONE, US 20940 4048 3873 AKAMAI-ASN1, NL 7155 3894 3861 VIASAT-SP-BACKBONE, US 8551 3699 3661 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3625 3604 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 23.131.185.0/24 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: 46450 PILOT, US 23.131.188.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 23.131.190.0/24 Origin: 7018 ATT-INTERNET4, US 23.131.190.0/24 Transit: 6453 AS6453, 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 /11:101 /12:296 /13:585 /14:1198 /15:2078 /16:13481 /17:8231 /18:13776 /19:24799 /20:42824 /21:50774 /22:108582 /23:96452 /24:537649 /25:0 /26:1 /27:1 /28:0 /29:1 /30:5 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6004 6958 UNI2-AS, ES 8151 4908 10922 Uninet S.A. de C.V., MX 39891 3547 4492 ALJAWWALSTC-AS, SA 11492 3453 4546 CABLEONE, US 6327 3328 3520 SHAW, CA 8551 3164 3699 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 2983 3894 VIASAT-SP-BACKBONE, US 22773 2728 3696 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2221 2562 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2071 2221 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1620 2:1219 3:168 4:5 5:4113 6:110 7:5 8:1535 9:1 11:172 12:1611 13:368 14:2360 15:285 16:76 17:372 18:407 20:243 21:4 22:188 23:6002 24:2428 25:4 27:2707 29:19 31:2497 32:102 34:8 35:95 36:1840 37:4617 38:3930 39:820 40:144 41:3922 42:1041 43:2292 44:305 45:16399 46:4213 47:372 49:1707 50:1930 51:374 52:1543 54:396 55:708 56:8 57:82 58:1679 59:1105 60:1006 61:2425 62:2596 63:1945 64:5649 65:2324 66:4904 67:3032 68:1361 69:4129 70:1255 71:656 72:2883 74:2592 75:1465 76:593 77:2333 78:1823 79:2940 80:2068 81:1687 82:1488 83:1231 84:1491 85:2977 86:744 87:1923 88:1178 89:3504 90:588 91:7612 92:1983 93:2563 94:3496 95:3896 96:1316 97:343 98:1173 99:739 100:75 101:1288 102:2530 103:30632 104:4605 105:482 106:849 107:2541 108:909 109:4325 110:2040 111:3264 112:2025 113:1492 114:1600 115:2009 116:1872 117:2473 118:2282 119:1881 120:1696 121:1038 122:2574 123:2136 124:1534 125:2256 128:1235 129:966 130:961 131:2009 132:827 133:401 134:1803 135:295 136:886 137:922 138:2586 139:1502 140:1021 141:1489 142:1411 143:1442 144:1188 145:352 146:1881 147:1513 148:2269 149:1849 150:861 151:1143 152:1959 153:476 154:3797 155:1417 156:1624 157:1293 158:1029 159:2235 160:2573 161:1429 162:3530 163:1464 164:1678 165:1650 166:818 167:1746 168:3828 169:921 170:4563 171:887 172:3525 173:3055 174:1026 175:1157 176:3621 177:4790 178:3528 179:2144 180:2395 181:3340 182:3230 183:1932 184:2365 185:19966 186:4626 187:3918 188:4054 189:3437 190:9020 191:1463 192:10960 193:8805 194:7167 195:5069 196:3057 197:2413 198:5927 199:6075 200:7649 201:5875 202:10220 203:9994 204:4602 205:3503 206:3766 207:3344 208:4102 209:4801 210:4148 211:2382 212:4049 213:3527 214:1110 215:55 216:6587 217:2642 218:1250 219:408 220:1779 221:953 222:663 223:1976 End of report