IPv4 R&E Routing Table Report 23:05 GMT Sat 21 Jan, 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: 903344 Prefixes after maximum aggregation (per Origin AS): 343925 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 444863 Number of IPv4 prefixes with a valid ROA: 369057 Number of IPv4 prefixes with an invalid ROA: 1519 Number of IPv4 prefixes with no ROA: 532768 Total ASes present in the Internet Routing Table: 73932 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63501 Origin ASes announcing only one prefix: 26127 Transit ASes present in the Internet Routing Table: 10431 Transit-only ASes present in the Internet Routing Table: 429 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 960 Number of instances of unregistered ASNs: 969 Number of 32-bit ASNs allocated by the RIRs: 41080 Number of 32-bit ASNs visible in the Routing Table: 34031 Prefixes from 32-bit ASNs in the Routing Table: 166104 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 499 Number of addresses announced to Internet: 3062684416 Equivalent to 182 /8s, 140 /16s and 219 /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: 303779 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233662 Total APNIC prefixes after maximum aggregation: 67986 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 228781 Unique aggregates announced from the APNIC address blocks: 97620 APNIC Region origin ASes present in the Internet Routing Table: 13171 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3817 APNIC Region transit ASes present in the Internet Routing Table: 1770 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: 8497 Number of APNIC addresses announced to Internet: 773137920 Equivalent to 46 /8s, 21 /16s and 38 /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: 266150 Total ARIN prefixes after maximum aggregation: 120885 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268152 Unique aggregates announced from the ARIN address blocks: 129709 ARIN Region origin ASes present in the Internet Routing Table: 19026 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6996 ARIN Region transit ASes present in the Internet Routing Table: 1896 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: 4719 Number of ARIN addresses announced to Internet: 1286022656 Equivalent to 76 /8s, 167 /16s and 38 /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: 255998 Total RIPE prefixes after maximum aggregation: 120316 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252292 Unique aggregates announced from the RIPE address blocks: 156108 RIPE Region origin ASes present in the Internet Routing Table: 28219 RIPE Prefixes per ASN: 8.94 RIPE Region origin ASes announcing only one prefix: 12043 RIPE Region transit ASes present in the Internet Routing Table: 3986 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10990 Number of RIPE addresses announced to Internet: 719064576 Equivalent to 42 /8s, 220 /16s and 14 /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: 117468 Total LACNIC prefixes after maximum aggregation: 28292 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116640 Unique aggregates announced from the LACNIC address blocks: 49032 LACNIC Region origin ASes present in the Internet Routing Table: 11002 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2683 LACNIC Region transit ASes present in the Internet Routing Table: 2274 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: 8775 Number of LACNIC addresses announced to Internet: 176134144 Equivalent to 10 /8s, 127 /16s and 152 /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: 29106 Total AfriNIC prefixes after maximum aggregation: 5701 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 36980 Unique aggregates announced from the AfriNIC address blocks: 11989 AfriNIC Region origin ASes present in the Internet Routing Table: 1704 AfriNIC Prefixes per ASN: 21.70 AfriNIC Region origin ASes announcing only one prefix: 588 AfriNIC Region transit ASes present in the Internet Routing Table: 326 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1050 Number of AfriNIC addresses announced to Internet: 108037888 Equivalent to 6 /8s, 112 /16s and 135 /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 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5944 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3634 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3520 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3107 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2715 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2360 849 436 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2163 440 214 TATACOMM-AS TATA Communications formerl 45090 2147 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 7830 10713 2922 AMAZON-02, US 11492 4530 300 601 CABLEONE, US 7155 3895 265 33 VIASAT-SP-BACKBONE, US 22773 3692 3067 323 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3500 1320 63 SHAW, CA 16625 3461 1784 2510 AKAMAI-AS, US 749 3024 50575 2291 DNIC-AS-00749, US 7018 2593 24128 1569 ATT-INTERNET4, US 396982 2581 3494 370 GOOGLE-CLOUD-PLATFORM, US 30036 2570 368 356 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 6965 1705 145 UNI2-AS, ES 39891 4557 269 60 ALJAWWALSTC-AS, SA 20940 4044 3399 171 AKAMAI-ASN1, NL 8551 3904 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2690 255 1355 M247, RO 34984 2253 358 609 TELLCOM-AS, TR 6849 2197 339 20 UKRTELNET, UA 58224 1825 944 537 TCI, IR 13188 1609 100 34 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 11046 3340 585 Uninet S.A. de C.V., MX 10620 3472 507 854 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2222 366 594 Mega Cable, S.A. de C.V., MX 28573 1350 2329 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1302 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 742 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1150 369 22 Telefonica del Peru S.A.A., PE 11664 1136 186 465 Techtel LMDS Comunicaciones Interactiva 26615 1008 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 24835 1505 533 29 RAYA-AS, EG 24863 1503 393 21 LINKdotNET-AS, EG 36992 1332 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1004 67 46 ORANGE-COTE-IVOIRE, CI 36935 884 520 42 Vodafone-, EG 6713 612 1861 34 IAM-AS, MA 15399 528 54 45 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 493 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 11046 3340 585 Uninet S.A. de C.V., MX 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7830 10713 2922 AMAZON-02, US 12479 6965 1705 145 UNI2-AS, ES 7545 5944 787 703 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4557 269 60 ALJAWWALSTC-AS, SA 11492 4530 300 601 CABLEONE, US 20940 4044 3399 171 AKAMAI-ASN1, NL 8551 3904 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3895 265 33 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 9436 9389 CHINAMOBILE-CN China Mobile Communications Grou 12479 6965 6820 UNI2-AS, ES 7545 5944 5241 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7830 4908 AMAZON-02, US 39891 4557 4497 ALJAWWALSTC-AS, SA 11492 4530 3929 CABLEONE, US 20940 4044 3873 AKAMAI-ASN1, NL 8551 3904 3866 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3895 3862 VIASAT-SP-BACKBONE, US 7552 3634 3613 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: 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 /11:101 /12:295 /13:581 /14:1200 /15:2078 /16:13472 /17:8233 /18:13774 /19:24807 /20:42767 /21:50824 /22:108803 /23:96783 /24:539550 /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 6032 6965 UNI2-AS, ES 8151 5059 11046 Uninet S.A. de C.V., MX 39891 3548 4557 ALJAWWALSTC-AS, SA 11492 3445 4530 CABLEONE, US 8551 3369 3904 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3308 3500 SHAW, CA 7155 2984 3895 VIASAT-SP-BACKBONE, US 22773 2727 3692 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2227 2570 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2048 2197 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1626 2:1229 3:168 4:5 5:4115 6:109 7:5 8:1522 9:1 11:172 12:1586 13:378 14:2318 15:286 16:79 17:370 18:422 20:243 21:4 22:188 23:6043 24:2475 25:4 27:2650 29:19 31:2504 32:99 34:9 35:104 36:1896 37:4597 38:4029 39:833 40:154 41:3937 42:1042 43:2294 44:302 45:16349 46:4173 47:374 49:1728 50:1925 51:379 52:1548 54:394 55:860 56:8 57:78 58:1677 59:1113 60:1007 61:2418 62:2610 63:1936 64:5647 65:2317 66:4908 67:3047 68:1344 69:4128 70:1252 71:660 72:2976 74:2578 75:1463 76:593 77:2377 78:1825 79:3168 80:2078 81:1682 82:1480 83:1227 84:1504 85:2943 86:744 87:1933 88:1208 89:3522 90:591 91:7625 92:1986 93:2586 94:3524 95:3920 96:1328 97:346 98:1163 99:741 100:75 101:1291 102:2552 103:30840 104:4580 105:483 106:846 107:2528 108:914 109:4355 110:2072 111:3297 112:2041 113:1467 114:1606 115:2020 116:1872 117:2562 118:2287 119:1879 120:1734 121:1046 122:2580 123:2145 124:1558 125:2281 128:1252 129:1047 130:971 131:1984 132:831 133:406 134:1903 135:299 136:887 137:928 138:2566 139:1543 140:1033 141:1485 142:1414 143:1473 144:1192 145:349 146:1829 147:1546 148:2269 149:1871 150:861 151:1133 152:1946 153:478 154:3904 155:1405 156:1652 157:1298 158:1044 159:2260 160:2557 161:1438 162:3525 163:1469 164:1599 165:1665 166:814 167:1757 168:3840 169:915 170:4589 171:895 172:3509 173:2995 174:1022 175:1159 176:3686 177:4719 178:3555 179:2154 180:2410 181:3358 182:3242 183:1934 184:2343 185:19972 186:4660 187:3923 188:4062 189:3504 190:9048 191:1427 192:10924 193:8799 194:7188 195:5103 196:3096 197:2412 198:5928 199:6080 200:7683 201:5836 202:10220 203:10008 204:4592 205:3502 206:3793 207:3362 208:4076 209:4792 210:4157 211:2389 212:4052 213:3545 214:1087 215:55 216:6618 217:2629 218:1257 219:400 220:1779 221:968 222:665 223:2032 End of report