IPv4 R&E Routing Table Report 23:05 GMT Wed 18 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: 903396 Prefixes after maximum aggregation (per Origin AS): 344241 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445148 Number of IPv4 prefixes with a valid ROA: 369098 Number of IPv4 prefixes with an invalid ROA: 1444 Number of IPv4 prefixes with no ROA: 532854 Total ASes present in the Internet Routing Table: 73925 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63494 Origin ASes announcing only one prefix: 26145 Transit ASes present in the Internet Routing Table: 10431 Transit-only ASes present in the Internet Routing Table: 424 Paths with bogon ASNs present in the IPv4 Routing Table: 35 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: 971 Number of instances of unregistered ASNs: 980 Number of 32-bit ASNs allocated by the RIRs: 41059 Number of 32-bit ASNs visible in the Routing Table: 34016 Prefixes from 32-bit ASNs in the Routing Table: 165910 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: 505 Number of addresses announced to Internet: 3062632704 Equivalent to 182 /8s, 140 /16s and 17 /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: 303894 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233552 Total APNIC prefixes after maximum aggregation: 67986 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 228659 Unique aggregates announced from the APNIC address blocks: 97579 APNIC Region origin ASes present in the Internet Routing Table: 13163 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3816 APNIC Region transit ASes present in the Internet Routing Table: 1772 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: 8485 Number of APNIC addresses announced to Internet: 773277696 Equivalent to 46 /8s, 23 /16s and 72 /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: 266472 Total ARIN prefixes after maximum aggregation: 121225 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 267993 Unique aggregates announced from the ARIN address blocks: 129674 ARIN Region origin ASes present in the Internet Routing Table: 19016 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6994 ARIN Region transit ASes present in the Internet Routing Table: 1895 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4718 Number of ARIN addresses announced to Internet: 1285659392 Equivalent to 76 /8s, 161 /16s and 155 /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: 255857 Total RIPE prefixes after maximum aggregation: 120277 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252613 Unique aggregates announced from the RIPE address blocks: 156421 RIPE Region origin ASes present in the Internet Routing Table: 28220 RIPE Prefixes per ASN: 8.95 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 3984 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: 10982 Number of RIPE addresses announced to Internet: 719220992 Equivalent to 42 /8s, 222 /16s and 113 /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: 117410 Total LACNIC prefixes after maximum aggregation: 28286 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116613 Unique aggregates announced from the LACNIC address blocks: 48967 LACNIC Region origin ASes present in the Internet Routing Table: 11001 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2690 LACNIC Region transit ASes present in the Internet Routing Table: 2270 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: 8773 Number of LACNIC addresses announced to Internet: 176051200 Equivalent to 10 /8s, 126 /16s and 84 /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: 29134 Total AfriNIC prefixes after maximum aggregation: 5714 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37013 Unique aggregates announced from the AfriNIC address blocks: 12096 AfriNIC Region origin ASes present in the Internet Routing Table: 1714 AfriNIC Prefixes per ASN: 21.59 AfriNIC Region origin ASes announcing only one prefix: 594 AfriNIC Region transit ASes present in the Internet Routing Table: 328 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: 1058 Number of AfriNIC addresses announced to Internet: 108134912 Equivalent to 6 /8s, 114 /16s and 2 /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 5940 786 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3634 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3523 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3110 1874 95 VNPT-AS-VN VNPT Corp, VN 9498 2705 499 237 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 2164 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 7800 10708 2927 AMAZON-02, US 11492 4530 300 596 CABLEONE, US 7155 3895 265 33 VIASAT-SP-BACKBONE, US 22773 3690 3063 321 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3499 1320 63 SHAW, CA 16625 3449 1775 2506 AKAMAI-AS, US 749 3024 50575 2291 DNIC-AS-00749, US 7018 2616 24131 1589 ATT-INTERNET4, US 396982 2579 3494 371 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 6956 1705 145 UNI2-AS, ES 39891 4557 269 60 ALJAWWALSTC-AS, SA 20940 4036 3399 171 AKAMAI-ASN1, NL 8551 3908 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2290 908 ROSTELECOM-AS, RU 9009 2680 254 1352 M247, RO 34984 2254 358 610 TELLCOM-AS, TR 6849 2193 339 20 UKRTELNET, UA 58224 1825 944 537 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 11027 3340 588 Uninet S.A. de C.V., MX 10620 3469 507 852 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2217 365 598 Mega Cable, S.A. de C.V., MX 28573 1350 2329 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 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 1135 186 464 Techtel LMDS Comunicaciones Interactiva 26615 1007 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 1532 533 30 RAYA-AS, EG 24863 1476 393 21 LINKdotNET-AS, EG 36992 1332 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1004 67 45 ORANGE-COTE-IVOIRE, CI 36935 884 520 42 Vodafone-, EG 6713 611 1861 34 IAM-AS, MA 15399 526 53 45 WANANCHI-, KE 24757 494 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 11027 3340 588 Uninet S.A. de C.V., MX 9808 9436 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7800 10708 2927 AMAZON-02, US 12479 6956 1705 145 UNI2-AS, ES 7545 5940 786 698 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4557 269 60 ALJAWWALSTC-AS, SA 11492 4530 300 596 CABLEONE, US 20940 4036 3399 171 AKAMAI-ASN1, NL 8551 3908 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 6956 6811 UNI2-AS, ES 7545 5940 5242 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7800 4873 AMAZON-02, US 39891 4557 4497 ALJAWWALSTC-AS, SA 11492 4530 3934 CABLEONE, US 8551 3908 3870 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4036 3865 AKAMAI-ASN1, NL 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 /13:580 /14:1199 /15:2077 /16:13479 /17:8233 /18:13782 /19:24828 /20:42764 /21:50846 /22:108832 /23:96789 /24:539515 /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 6020 6956 UNI2-AS, ES 8151 5036 11027 Uninet S.A. de C.V., MX 39891 3548 4557 ALJAWWALSTC-AS, SA 11492 3437 4530 CABLEONE, US 8551 3373 3908 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3307 3499 SHAW, CA 7155 2984 3895 VIASAT-SP-BACKBONE, US 22773 2727 3690 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2227 2570 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2044 2193 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1625 2:1230 3:168 4:5 5:4120 6:110 7:5 8:1520 9:1 11:172 12:1590 13:374 14:2321 15:286 16:79 17:369 18:421 20:243 21:4 22:188 23:6042 24:2457 25:4 27:2651 29:19 31:2502 32:99 34:8 35:103 36:1895 37:4608 38:4022 39:833 40:155 41:3955 42:1038 43:2292 44:305 45:16348 46:4175 47:374 49:1729 50:1923 51:379 52:1544 54:393 55:856 56:8 57:78 58:1677 59:1112 60:1006 61:2420 62:2632 63:1940 64:5644 65:2323 66:4902 67:3044 68:1343 69:4126 70:1254 71:657 72:2977 74:2584 75:1465 76:594 77:2374 78:1826 79:3170 80:2079 81:1682 82:1479 83:1227 84:1504 85:2955 86:743 87:1934 88:1207 89:3536 90:590 91:7656 92:1987 93:2588 94:3526 95:3922 96:1307 97:346 98:1164 99:740 100:75 101:1293 102:2556 103:30781 104:4574 105:483 106:847 107:2533 108:912 109:4351 110:2074 111:3296 112:2041 113:1466 114:1605 115:2019 116:1874 117:2558 118:2287 119:1880 120:1734 121:1047 122:2576 123:2148 124:1557 125:2277 128:1255 129:1048 130:959 131:1987 132:828 133:406 134:1904 135:299 136:888 137:929 138:2566 139:1543 140:1033 141:1480 142:1415 143:1450 144:1187 145:350 146:1866 147:1546 148:2266 149:1870 150:861 151:1130 152:1970 153:478 154:3897 155:1400 156:1650 157:1298 158:1044 159:2264 160:2570 161:1422 162:3529 163:1472 164:1671 165:1665 166:824 167:1749 168:3844 169:914 170:4580 171:886 172:3503 173:2994 174:1026 175:1159 176:3696 177:4725 178:3545 179:2143 180:2410 181:3356 182:3240 183:1933 184:2338 185:19985 186:4649 187:3934 188:4076 189:3475 190:9014 191:1424 192:10925 193:8832 194:7214 195:5103 196:3015 197:2411 198:5926 199:6079 200:7659 201:5856 202:10213 203:9986 204:4591 205:3500 206:3780 207:3356 208:4071 209:4795 210:4157 211:2389 212:4061 213:3574 214:1093 215:55 216:6605 217:2636 218:1257 219:400 220:1780 221:968 222:665 223:2033 End of report