IPv4 R&E Routing Table Report 23:05 GMT Tue 21 Mar, 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: 908115 Prefixes after maximum aggregation (per Origin AS): 345801 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446894 Number of IPv4 prefixes with a valid ROA: 379794 Number of IPv4 prefixes with an invalid ROA: 1621 Number of IPv4 prefixes with no ROA: 526700 Total ASes present in the Internet Routing Table: 74043 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63601 Origin ASes announcing only one prefix: 26135 Transit ASes present in the Internet Routing Table: 10442 Transit-only ASes present in the Internet Routing Table: 438 Paths with bogon ASNs present in the IPv4 Routing Table: 32 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: 1081 Number of instances of unregistered ASNs: 1096 Number of 32-bit ASNs allocated by the RIRs: 41481 Number of 32-bit ASNs visible in the Routing Table: 34279 Prefixes from 32-bit ASNs in the Routing Table: 167912 Number of bogon 32-bit ASNs visible in the Routing Table: 43 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 502 Number of addresses announced to Internet: 3062107648 Equivalent to 182 /8s, 132 /16s and 14 /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: 305441 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235257 Total APNIC prefixes after maximum aggregation: 68209 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229944 Unique aggregates announced from the APNIC address blocks: 97872 APNIC Region origin ASes present in the Internet Routing Table: 13278 APNIC Prefixes per ASN: 17.32 APNIC Region origin ASes announcing only one prefix: 3880 APNIC Region transit ASes present in the Internet Routing Table: 1785 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8626 Number of APNIC addresses announced to Internet: 773092352 Equivalent to 46 /8s, 20 /16s and 116 /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: 266979 Total ARIN prefixes after maximum aggregation: 121267 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269126 Unique aggregates announced from the ARIN address blocks: 130210 ARIN Region origin ASes present in the Internet Routing Table: 19002 ARIN Prefixes per ASN: 14.16 ARIN Region origin ASes announcing only one prefix: 6970 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: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4741 Number of ARIN addresses announced to Internet: 1285829888 Equivalent to 76 /8s, 164 /16s and 53 /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: 258085 Total RIPE prefixes after maximum aggregation: 121564 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254336 Unique aggregates announced from the RIPE address blocks: 157186 RIPE Region origin ASes present in the Internet Routing Table: 28267 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12034 RIPE Region transit ASes present in the Internet Routing Table: 3977 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: 11084 Number of RIPE addresses announced to Internet: 718306304 Equivalent to 42 /8s, 208 /16s and 124 /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: 117243 Total LACNIC prefixes after maximum aggregation: 28182 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116618 Unique aggregates announced from the LACNIC address blocks: 49006 LACNIC Region origin ASes present in the Internet Routing Table: 10954 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2276 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8763 Number of LACNIC addresses announced to Internet: 176514048 Equivalent to 10 /8s, 133 /16s and 100 /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: 29470 Total AfriNIC prefixes after maximum aggregation: 5797 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 37589 Unique aggregates announced from the AfriNIC address blocks: 12217 AfriNIC Region origin ASes present in the Internet Routing Table: 1720 AfriNIC Prefixes per ASN: 21.85 AfriNIC Region origin ASes announcing only one prefix: 592 AfriNIC Region transit ASes present in the Internet Routing Table: 331 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: 1065 Number of AfriNIC addresses announced to Internet: 107981312 Equivalent to 6 /8s, 111 /16s and 170 /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 9491 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5758 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3355 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2860 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2309 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2170 440 216 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 8096 10764 2871 AMAZON-02, US 11492 4531 300 620 CABLEONE, US 7155 3962 279 45 VIASAT-SP-BACKBONE, US 22773 3641 3064 295 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3513 1320 64 SHAW, CA 16625 3157 1589 2337 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2622 3588 355 GOOGLE-CLOUD-PLATFORM, US 7018 2565 24118 1570 ATT-INTERNET4, US 30036 2511 361 480 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 7100 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4041 3399 163 AKAMAI-ASN1, NL 8551 3891 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2901 2292 912 ROSTELECOM-AS, RU 9009 2655 252 1388 M247, RO 34984 2269 359 611 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1849 949 547 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 11189 3341 589 Uninet S.A. de C.V., MX 10620 3475 504 881 Telmex Colombia S.A., CO 13999 2293 373 608 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1332 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 455 Techtel LMDS Comunicaciones Interactiva 26615 1030 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 24863 1568 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1312 1512 268 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1019 67 53 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 486 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 11189 3341 589 Uninet S.A. de C.V., MX 9808 9491 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8096 10764 2871 AMAZON-02, US 12479 7100 1705 149 UNI2-AS, ES 7545 5758 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4531 300 620 CABLEONE, US 20940 4041 3399 163 AKAMAI-ASN1, NL 7155 3962 279 45 VIASAT-SP-BACKBONE, US 8551 3891 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 9491 9443 CHINAMOBILE-CN China Mobile Communications Grou 12479 7100 6951 UNI2-AS, ES 16509 8096 5225 AMAZON-02, US 7545 5758 5069 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3962 3917 VIASAT-SP-BACKBONE, US 11492 4531 3911 CABLEONE, US 20940 4041 3878 AKAMAI-ASN1, NL 8551 3891 3854 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 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 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 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 /13:575 /14:1198 /15:2075 /16:13422 /17:8180 /18:13714 /19:24823 /20:42872 /21:51003 /22:108798 /23:96947 /24:544030 /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 6157 7100 UNI2-AS, ES 8151 5146 11189 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3439 4531 CABLEONE, US 8551 3363 3891 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3322 3513 SHAW, CA 7155 3037 3962 VIASAT-SP-BACKBONE, US 22773 2695 3641 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2168 2511 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2029 3475 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) ---------------------------------------------- 1:1668 2:1222 3:170 4:5 5:4431 6:118 7:6 8:1518 9:1 11:172 12:1577 13:394 14:2310 15:296 16:111 17:367 18:401 20:248 21:4 22:188 23:6111 24:2493 25:6 27:2500 29:19 31:2505 32:101 34:10 35:104 36:1925 37:4619 38:4331 39:809 40:151 41:3998 42:953 43:2309 44:311 45:16442 46:4223 47:370 49:1733 50:1823 51:569 52:1587 54:388 55:863 56:8 57:91 58:1674 59:1084 60:974 61:2463 62:2632 63:1932 64:5666 65:2315 66:4916 67:3019 68:1363 69:4119 70:1259 71:666 72:2971 74:2592 75:1463 76:605 77:2421 78:1839 79:3165 80:2079 81:1738 82:1507 83:1242 84:1509 85:2998 86:747 87:1958 88:1238 89:3607 90:612 91:7673 92:2028 93:2576 94:3549 95:3966 96:1329 97:332 98:1163 99:747 100:77 101:1301 102:2668 103:31104 104:4595 105:483 106:896 107:2548 108:981 109:4388 110:2062 111:3192 112:2048 113:1491 114:1625 115:2013 116:1895 117:2549 118:2286 119:1962 120:1749 121:1046 122:2588 123:2135 124:1578 125:2422 128:1248 129:1056 130:999 131:2007 132:838 133:421 134:1896 135:300 136:861 137:936 138:2561 139:1521 140:1220 141:1479 142:1427 143:1498 144:1161 145:356 146:1919 147:1559 148:2298 149:1947 150:873 151:1147 152:1953 153:488 154:4239 155:1411 156:1675 157:1273 158:1038 159:2265 160:2536 161:1497 162:3535 163:1494 164:1590 165:1706 166:849 167:1727 168:3853 169:923 170:4600 171:882 172:3507 173:2937 174:1019 175:1159 176:3660 177:4616 178:3629 179:2186 180:2436 181:3416 182:3321 183:1935 184:2346 185:20153 186:4667 187:3978 188:4050 189:3580 190:9092 191:1440 192:10941 193:8831 194:7253 195:5132 196:3181 197:2387 198:5888 199:6082 200:7719 201:5864 202:10325 203:10176 204:4606 205:3531 206:3831 207:3389 208:4064 209:4845 210:4167 211:2383 212:4102 213:3531 214:1098 215:60 216:6599 217:2655 218:1267 219:407 220:1758 221:973 222:681 223:2138 End of report