This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 06 Dec, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1040919 Prefixes after maximum aggregation (per Origin AS): 394850 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 504569 Number of IPv4 prefixes with a valid ROA: 608965 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 431934 Total ASes present in the Internet Routing Table: 77714 Prefixes per ASN: 13.39 Origin-only ASes present in the Internet Routing Table: 66513 Origin ASes announcing only one prefix: 27054 Transit ASes present in the Internet Routing Table: 11201 Transit-only ASes present in the Internet Routing Table: 567 Paths with bogon ASNs present in the IPv4 Routing Table: 70 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 938 Number of instances of unregistered ASNs: 984 Number of 32-bit ASNs allocated by the RIRs: 48158 Number of 32-bit ASNs visible in the Routing Table: 39469 Prefixes from 32-bit ASNs in the Routing Table: 220579 Number of bogon 32-bit ASNs visible in the Routing Table: 104 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 321 Number of addresses announced to Internet: 3105759905 Equivalent to 185 /8s, 30 /16s and 34 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 339095 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286802 Total APNIC prefixes after maximum aggregation: 81743 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 274499 Unique aggregates announced from the APNIC address blocks: 106644 APNIC Region origin ASes present in the Internet Routing Table: 15005 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 4554 APNIC Region transit ASes present in the Internet Routing Table: 2021 Average APNIC Region AS path length visible: 5.6 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10503 Number of APNIC addresses announced to Internet: 758394176 Equivalent to 45 /8s, 52 /16s and 45 /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, 131072-155961 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: 302214 Total ARIN prefixes after maximum aggregation: 134600 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 301585 Unique aggregates announced from the ARIN address blocks: 145670 ARIN Region origin ASes present in the Internet Routing Table: 19388 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7097 ARIN Region transit ASes present in the Internet Routing Table: 1987 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5428 Number of ARIN addresses announced to Internet: 1337496576 Equivalent to 79 /8s, 184 /16s and 148 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 286391 Total RIPE prefixes after maximum aggregation: 140130 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 287421 Unique aggregates announced from the RIPE address blocks: 183863 RIPE Region origin ASes present in the Internet Routing Table: 29127 RIPE Prefixes per ASN: 9.87 RIPE Region origin ASes announcing only one prefix: 12039 RIPE Region transit ASes present in the Internet Routing Table: 4052 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12867 Number of RIPE addresses announced to Internet: 735859713 Equivalent to 43 /8s, 220 /16s and 84 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 128105 Total LACNIC prefixes after maximum aggregation: 30840 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123987 Unique aggregates announced from the LACNIC address blocks: 49756 LACNIC Region origin ASes present in the Internet Routing Table: 11337 LACNIC Prefixes per ASN: 10.94 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2553 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9321 Number of LACNIC addresses announced to Internet: 170689888 Equivalent to 10 /8s, 44 /16s and 133 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36469 Total AfriNIC prefixes after maximum aggregation: 6897 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 53106 Unique aggregates announced from the AfriNIC address blocks: 18352 AfriNIC Region origin ASes present in the Internet Routing Table: 1988 AfriNIC Prefixes per ASN: 26.71 AfriNIC Region origin ASes announcing only one prefix: 710 AfriNIC Region transit ASes present in the Internet Routing Table: 389 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1350 Number of AfriNIC addresses announced to Internet: 103192576 Equivalent to 6 /8s, 38 /16s and 152 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 13429 8888 173 CHINAMOBILE-CN China Mobile Communication 7545 6041 834 587 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4919 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4601 541 336 BBIL-AP BHARTI Airtel Ltd., IN 18403 4405 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4405 1874 54 VNPT-AS-VN VNPT Corp, VN 7552 4039 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3710 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3480 848 234 CMNET-JIANGSU-AP China Mobile communicati 24560 2949 864 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14289 37210 5408 AMAZON-02, US 22773 4776 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 174 4436 8767 841 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3313 4862 487 GOOGLE-CLOUD-PLATFORM, US 749 3208 54760 2459 DNIC-AS-00749, US 16625 2895 1241 2159 AKAMAI-AS, US 36352 2822 231 909 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7287 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3988 375 2283 M247, RO 20940 3890 3395 139 AKAMAI-ASN1, NL 12389 3183 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2541 181 1839 CDNEXT, GB 34984 2424 363 576 TELLCOM-AS, TR 5384 2384 585 27 EMIRATES-INTERNET Emirates Internet, AE 8452 1670 1852 14 TE-AS TE-AS, EG 203020 1614 241 782 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12655 3291 585 UNINET, MX 10620 3458 463 1101 Telmex Colombia S.A., CO 13999 2508 509 352 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1373 2431 267 Claro NXT Telecomunicacoes Ltda, BR 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 56 TIM SA, BR 18881 901 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1924 368 14 RAYA-AS, EG 36992 1683 1509 399 ETISALAT-MISR, EG 24863 1260 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1093 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1036 519 30 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 82 3 KENET-AS, KE 15399 550 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14289 37210 5408 AMAZON-02, US 9808 13429 8888 173 CHINAMOBILE-CN China Mobile Communication 8151 12655 3291 585 UNINET, MX 12479 7287 1711 149 UNI2-AS, ES 7545 6041 834 587 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4919 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4776 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4601 541 336 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13429 13256 CHINAMOBILE-CN China Mobile Communications Grou 8151 12655 12070 UNINET, MX 12479 7287 7138 UNI2-AS, ES 7545 6041 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4919 4843 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4776 4410 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4405 4381 FPT-AS-AP FPT Telecom Company, VN 45899 4405 4351 VNPT-AS-VN VNPT Corp, VN 9498 4601 4265 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:94 /12:299 /13:583 /14:1208 /15:2115 /16:13827 /17:8469 /18:14207 /19:25628 /20:46696 /21:53573 /22:114975 /23:108629 /24:649770 /25:146 /26:112 /27:116 /28:40 /29:65 /30:9 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6855 12655 UNINET, MX 12479 6217 7287 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3048 4776 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2436 14289 AMAZON-02, US 30036 2318 2661 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3458 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2507 2:1624 3:977 4:12 5:5039 6:190 7:6 8:1535 9:6 11:172 12:1230 13:571 14:2666 15:414 16:303 17:392 18:915 20:603 21:4 22:188 23:8106 24:2614 25:2 27:2861 29:19 31:3479 32:35 33:1 34:85 35:289 36:4622 37:4600 38:10501 39:1202 40:446 41:4554 42:1974 43:2982 44:401 45:19729 46:5201 47:408 49:2179 50:2057 51:597 52:1568 54:289 55:1099 56:11 57:308 58:2399 59:1402 60:1197 61:3316 62:3121 63:1753 64:5982 65:2124 66:5926 67:3244 68:1498 69:4270 70:1022 71:627 72:3014 74:2950 75:1526 76:600 77:2772 78:1917 79:1794 80:2341 81:2106 82:3838 83:1501 84:2038 85:3650 86:1202 87:2334 88:1352 89:4600 90:842 91:8484 92:2917 93:3032 94:4358 95:4573 96:1485 97:312 98:951 99:773 100:68 101:1378 102:4499 103:32729 104:5501 105:1036 106:931 107:2809 108:1206 109:4292 110:2307 111:3996 112:2824 113:1987 114:2119 115:2372 116:2226 117:3180 118:3049 119:2189 120:2440 121:1593 122:2984 123:2622 124:1756 125:2970 126:125 128:1627 129:979 130:1532 131:2302 132:768 133:462 134:1627 135:494 136:1507 137:1292 138:2976 139:1672 140:1743 141:1552 142:2343 143:2144 144:1364 145:629 146:2194 147:2151 148:2795 149:2947 150:1324 151:2635 152:2282 153:841 154:9443 155:2261 156:4264 157:2253 158:1473 159:2699 160:3747 161:1997 162:4018 163:2338 164:1972 165:2631 166:1310 167:2157 168:3988 169:805 170:5508 171:1123 172:4512 173:3429 174:907 175:1384 176:3795 177:4850 178:4316 179:2357 180:2925 181:4480 182:3873 183:2624 184:2090 185:21775 186:5801 187:4844 188:4451 189:4560 190:9818 191:1616 192:11488 193:9534 194:7998 195:5792 196:3312 197:3304 198:6094 199:6094 200:8290 201:6475 202:10972 203:10898 204:4614 205:3689 206:4458 207:3807 208:4308 209:5410 210:5121 211:2884 212:4948 213:4027 214:1025 215:53 216:7109 217:3529 218:1666 219:625 220:2201 221:1290 222:1032 223:3243 End of report