[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon May 12 20:17:08 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 12 May, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 263173
Prefixes after maximum aggregation (per Origin AS): 115909
Deaggregation factor: 2.27
Unique aggregates announced (without unneeded subnets): 136211
Number of IPv4 prefixes with a valid ROA: 118845
Number of IPv4 prefixes with an invalid ROA: 41
Number of IPv4 prefixes with no ROA: 144287
Total ASes present in the Internet Routing Table: 19809
Prefixes per ASN: 13.29
Origin-only ASes present in the Internet Routing Table: 17139
Origin ASes announcing only one prefix: 7783
Transit ASes present in the Internet Routing Table: 2670
Transit-only ASes present in the Internet Routing Table: 705
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 307
Number of instances of unregistered ASNs: 311
Number of 32-bit ASNs allocated by the RIRs: 46405
Number of 32-bit ASNs visible in the Routing Table: 7443
Prefixes from 32-bit ASNs in the Routing Table: 27916
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 131
Number of addresses announced to Internet: 1550219741
Equivalent to 92 /8s, 102 /16s and 121 /24s
Percentage of available address space announced: 41.9
Percentage of allocated address space announced: 41.9
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: 83179
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32770
Total APNIC prefixes after maximum aggregation: 7665
APNIC Deaggregation factor: 4.28
Prefixes being announced from the APNIC address blocks: 31085
Unique aggregates announced from the APNIC address blocks: 8049
APNIC Region origin ASes present in the Internet Routing Table: 1229
APNIC Prefixes per ASN: 25.29
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 205
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 567
Number of APNIC addresses announced to Internet: 167756140
Equivalent to 9 /8s, 255 /16s and 193 /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: 125495
Total ARIN prefixes after maximum aggregation: 65258
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 122452
Unique aggregates announced from the ARIN address blocks: 65923
ARIN Region origin ASes present in the Internet Routing Table: 9341
ARIN Prefixes per ASN: 13.11
ARIN Region origin ASes announcing only one prefix: 3908
ARIN Region transit ASes present in the Internet Routing Table: 865
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2174
Number of ARIN addresses announced to Internet: 960498657
Equivalent to 57 /8s, 64 /16s and 11 /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: 49775
Total RIPE prefixes after maximum aggregation: 26996
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 51597
Unique aggregates announced from the RIPE address blocks: 37604
RIPE Region origin ASes present in the Internet Routing Table: 4714
RIPE Prefixes per ASN: 10.95
RIPE Region origin ASes announcing only one prefix: 1987
RIPE Region transit ASes present in the Internet Routing Table: 712
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1941
Number of RIPE addresses announced to Internet: 284123984
Equivalent to 16 /8s, 239 /16s and 99 /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: 44214
Total LACNIC prefixes after maximum aggregation: 13407
LACNIC Deaggregation factor: 3.30
Prefixes being announced from the LACNIC address blocks: 43354
Unique aggregates announced from the LACNIC address blocks: 20023
LACNIC Region origin ASes present in the Internet Routing Table: 3437
LACNIC Prefixes per ASN: 12.61
LACNIC Region origin ASes announcing only one prefix: 1305
LACNIC Region transit ASes present in the Internet Routing Table: 685
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2620
Number of LACNIC addresses announced to Internet: 96404288
Equivalent to 5 /8s, 191 /16s and 3 /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: 10612
Total AfriNIC prefixes after maximum aggregation: 2378
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 14554
Unique aggregates announced from the AfriNIC address blocks: 4498
AfriNIC Region origin ASes present in the Internet Routing Table: 263
AfriNIC Prefixes per ASN: 55.34
AfriNIC Region origin ASes announcing only one prefix: 102
AfriNIC Region transit ASes present in the Internet Routing Table: 76
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 141
Number of AfriNIC addresses announced to Internet: 41385984
Equivalent to 2 /8s, 119 /16s and 128 /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 10614 8756 95 CHINAMOBILE-CN China Mobile Communication
56046 1701 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication
17561 863 55 407 LCS-AS-AP LARUS Limited, HK
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 602 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 501 796 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13353 40831 4887 AMAZON-02, US
22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54861 2504 DNIC-AS-00749, US
4155 2712 206 1656 USDA-1, US
36352 2532 208 1119 AS-COLOCROSSING, US
367 2423 2904 1173 DNIC-ASBLK-00306-00371, US
7018 2094 22888 1543 ATT-INTERNET4, US
11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1850 3732 488 CELLCO-PART, US
209 1663 4890 273 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1234 96 1005 AKAMAI-ASN1, NL
3257 994 2077 747 GTT-BACKBONE GTT, US
3215 894 4818 288 France Telecom - Orange, FR
25019 818 1301 129 SAUDINETSTC-AS, SA
34984 689 76 412 TELLCOM-AS, TR
8452 658 1842 17 TE-AS TE-AS, EG
212238 576 41 508 CDNEXT, GB
8376 574 53 22 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7163 1940 956 UNINET, MX
11830 1996 369 64 Instituto Costarricense de Electricidad y
10620 1902 280 1293 Telmex Colombia S.A., CO
3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1190 371 22 Telefonica del Peru S.A.A., PE
26615 1013 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 552 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1491 389 16 LINKdotNET-AS, EG
24835 1068 556 41 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 969 100 75 ORANGE-COTE-IVOIRE, CI
36935 719 141 187 Vodafone-, EG
36992 603 1228 124 ETISALAT-MISR, EG
36914 551 82 3 KENET-AS, KE
37069 469 1046 15 MOBINIL, EG
36903 410 192 301 MT-MPLS, MA
2018 372 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13353 40831 4887 AMAZON-02, US
9808 10614 8756 95 CHINAMOBILE-CN China Mobile Communication
8151 7163 1940 956 UNINET, MX
22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54861 2504 DNIC-AS-00749, US
4155 2712 206 1656 USDA-1, US
36352 2532 208 1119 AS-COLOCROSSING, US
367 2423 2904 1173 DNIC-ASBLK-00306-00371, US
7018 2094 22888 1543 ATT-INTERNET4, US
11830 1996 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10614 10519 CHINAMOBILE-CN China Mobile Communications Grou
8151 7163 6207 UNINET, MX
22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1996 1932 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1895 1679 ATLANTICBB-JOHNSTOWN, US
56046 1701 1515 CMNET-JIANGSU-AP China Mobile communications co
56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1491 1475 LINKdotNET-AS, EG
56047 1486 1433 CMNET-HUNAN-AP China Mobile communications corp
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:41 /12:151
/13:207 /14:570 /15:1098 /16:7578 /17:3432 /18:4208
/19:7573 /20:12489 /21:15151 /22:27765 /23:27699 /24:154937
/25:62 /26:82 /27:34 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3837 7163 UNINET, MX
22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2325 13353 AMAZON-02, US
11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR
10620 1081 1902 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1011 2532 AS-COLOCROSSING, US
19901 973 1259 BRSPD-PUBLIC, US
209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1895 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:507 3:716 4:6 5:811 6:156
7:5 8:680 11:171 12:990 13:338 14:111
15:301 16:247 17:6 18:886 20:177 21:4
22:188 23:2597 24:642 27:21 29:19 31:506
32:9 33:1 34:7 35:133 36:1576 37:948
38:1903 39:553 40:62 41:955 42:213 43:193
44:34 45:3643 46:957 47:86 49:19 50:362
51:408 52:1388 54:303 55:1090 56:11 57:14
58:18 59:31 60:16 61:72 62:548 63:764
64:1993 65:1091 66:1590 67:960 68:403 69:1124
70:441 71:202 72:765 74:960 75:426 76:249
77:485 78:352 79:289 80:297 81:361 82:717
83:262 84:358 85:452 86:238 87:247 88:279
89:871 90:104 91:951 92:606 93:473 94:938
95:619 96:290 97:59 98:456 99:171 100:35
101:22 102:364 103:1265 104:1627 105:140 106:16
107:1520 108:551 109:411 110:34 111:1947 112:456
113:39 114:45 115:12 116:62 117:1045 118:72
119:131 120:1188 121:46 122:66 123:78 124:57
125:25 128:468 129:307 130:686 131:903 132:555
133:212 134:495 135:112 136:578 137:500 138:869
139:434 140:710 141:455 142:1024 143:669 144:436
145:136 146:689 147:494 148:849 149:767 150:354
151:642 152:483 153:126 154:1750 155:839 156:1506
157:388 158:548 159:686 160:826 161:667 162:953
163:362 164:715 165:768 166:783 167:630 168:1103
169:143 170:1585 171:126 172:1373 173:839 174:251
175:53 176:675 177:827 178:505 179:671 180:49
181:1740 182:28 183:893 184:453 185:3534 186:2030
187:1327 188:801 189:1681 190:4229 191:420 192:5159
193:1850 194:1216 195:951 196:702 197:1671 198:2738
199:4892 200:3571 201:3273 202:1003 203:744 204:2160
205:1853 206:1543 207:1503 208:1433 209:1939 210:292
211:431 212:967 213:841 214:987 215:42 216:2538
217:423 218:520 219:19 220:26 221:335 222:32
223:772
End of report
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