Routing Table Report 08:00 +10GMT Mon 26 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 459573
Prefixes after maximum aggregation: 185849
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 230364
Total ASes present in the Internet Routing Table: 40810
Prefixes per ASN: 11.26
Origin-only ASes present in the Internet Routing Table: 35045
Origin ASes announcing only one prefix: 16264
Transit ASes present in the Internet Routing Table: 5758
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 280514
Unregistered ASNs in the Routing Table: 22695
Number of 32-bit ASNs allocated by the RIRs: 4977
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 11685
Special use prefixes present in the Routing Table: 10
Prefixes being announced from unallocated address space: 330
Number of addresses announced to Internet: 2658092544
Equivalent to 158 /8s, 111 /16s and 70 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 160435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 106189
Total APNIC prefixes after maximum aggregation: 32627
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 108678
Unique aggregates announced from the APNIC address blocks: 46363
APNIC Region origin ASes present in the Internet Routing Table: 4829
APNIC Prefixes per ASN: 22.51
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 804
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 725756416
Equivalent to 43 /8s, 66 /16s and 42 /24s
Percentage of available APNIC address space announced: 84.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 159976
Total ARIN prefixes after maximum aggregation: 80513
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160520
Unique aggregates announced from the ARIN address blocks: 75075
ARIN Region origin ASes present in the Internet Routing Table: 15784
ARIN Prefixes per ASN: 10.17
ARIN Region origin ASes announcing only one prefix: 6015
ARIN Region transit ASes present in the Internet Routing Table: 1619
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1070629120
Equivalent to 63 /8s, 208 /16s and 129 /24s
Percentage of available ARIN address space announced: 56.6
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, 393216-394239
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,
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: 118953
Total RIPE prefixes after maximum aggregation: 60720
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 122831
Unique aggregates announced from the RIPE address blocks: 79022
RIPE Region origin ASes present in the Internet Routing Table: 17361
RIPE Prefixes per ASN: 7.08
RIPE Region origin ASes announcing only one prefix: 8245
RIPE Region transit ASes present in the Internet Routing Table: 2776
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 657078016
Equivalent to 39 /8s, 42 /16s and 55 /24s
Percentage of available RIPE address space announced: 95.5
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, 196608-199679
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: 50310
Total LACNIC prefixes after maximum aggregation: 9410
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 54910
Unique aggregates announced from the LACNIC address blocks: 25663
LACNIC Region origin ASes present in the Internet Routing Table: 1990
LACNIC Prefixes per ASN: 27.59
LACNIC Region origin ASes announcing only one prefix: 569
LACNIC Region transit ASes present in the Internet Routing Table: 356
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 135358720
Equivalent to 8 /8s, 17 /16s and 105 /24s
Percentage of available LACNIC address space announced: 80.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11715
Total AfriNIC prefixes after maximum aggregation: 2537
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 12303
Unique aggregates announced from the AfriNIC address blocks: 3931
AfriNIC Region origin ASes present in the Internet Routing Table: 654
AfriNIC Prefixes per ASN: 18.81
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 129
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46551040
Equivalent to 2 /8s, 198 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 46.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2662 887 90 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
7545 2057 321 113 TPG Telecom Limited
4755 1789 401 191 TATA Communications formerly
9829 1531 1221 45 >>UNKNOWN<<
9583 1224 92 508 Sify Limited
9498 1179 309 70 BHARTI Airtel Ltd.
7552 1128 1080 13 >>UNKNOWN<<
24560 1089 394 160 >>UNKNOWN<<
4808 1067 2022 309 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 2976 3689 62 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
22773 2040 2933 124 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
20115 1675 1645 628 Charter Communications
4323 1630 1121 409 >>UNKNOWN<<
701 1520 11103 798 >>UNKNOWN<<
30036 1345 301 645 >>UNKNOWN<<
7018 1323 11310 838 >>UNKNOWN<<
11492 1223 218 361 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1578 544 16 >>UNKNOWN<<
34984 1298 241 217 >>UNKNOWN<<
31148 979 43 18 >>UNKNOWN<<
20940 965 349 742 >>UNKNOWN<<
2118 962 97 13 >>UNKNOWN<<
6830 899 2371 430 >>UNKNOWN<<
13188 845 99 71 >>UNKNOWN<<
8551 797 370 41 Bezeqint Internet Backbone
12479 687 797 53 >>UNKNOWN<<
9116 553 326 34 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3163 1684 110 >>UNKNOWN<<
10620 2673 425 219 >>UNKNOWN<<
7303 1732 1157 222 >>UNKNOWN<<
18881 1454 844 20 >>UNKNOWN<<
8151 1263 2765 386 >>UNKNOWN<<
11830 945 364 15 >>UNKNOWN<<
27947 809 95 92 Telconet S.A
6503 784 434 65 Axtel, S.A.B. de C.V.
6147 732 374 25 >>UNKNOWN<<
3816 725 303 85 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36998 1861 112 5 MOBITEL
24863 872 274 30 >>UNKNOWN<<
6713 543 633 26 Itissalat Al-MAGHRIB
8452 433 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 258 921 217 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 220 17 12 >>UNKNOWN<<
36992 220 501 28 >>UNKNOWN<<
12258 193 28 71 MWEB-12258
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 3163 1684 110 >>UNKNOWN<<
6389 2976 3689 62 BellSouth.net Inc.
10620 2673 425 219 >>UNKNOWN<<
17974 2662 887 90 >>UNKNOWN<<
4766 2117 11553 622 Korea Telecom
18566 2063 382 183 Covad Communications Co.
7545 2057 321 113 TPG Telecom Limited
22773 2040 2933 124 >>UNKNOWN<<
1785 2006 679 125 >>UNKNOWN<<
36998 1861 112 5 MOBITEL
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2976 2914 BellSouth.net Inc.
17974 2662 2572 >>UNKNOWN<<
10620 2673 2454 >>UNKNOWN<<
7545 2057 1944 TPG Telecom Limited
22773 2040 1916 >>UNKNOWN<<
1785 2006 1881 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
36998 1861 1856 MOBITEL
4755 1789 1598 TATA Communications formerly
8402 1578 1562 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
9953 UNALLOCATED 1.209.115.0/24 3786 LG DACOM Corporation
9953 UNALLOCATED 1.209.116.0/24 3786 LG DACOM Corporation
55633 UNALLOCATED 1.209.184.0/24 4766 Korea Telecom
9684 UNALLOCATED 1.209.204.0/24 4766 Korea Telecom
38132 UNALLOCATED 1.214.16.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.17.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.18.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.19.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.20.0/24 9318 Hanaro Telecom Inc.
38132 UNALLOCATED 1.214.21.0/24 9318 Hanaro Telecom Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
100.64.0.0/10 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.0.0/24 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
198.51.100.0/24 65333 Internet Assigned Numbers Aut
203.0.113.0/24 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
23.90.128.0/18 27418 >>UNKNOWN<<
23.91.0.0/19 40676 >>UNKNOWN<<
23.91.32.0/19 36315 >>UNKNOWN<<
23.92.16.0/21 8001 >>UNKNOWN<<
23.92.24.0/22 6939 Hurricane Electric, Inc.
23.92.48.0/20 62471 >>UNKNOWN<<
23.92.64.0/24 54540 >>UNKNOWN<<
23.92.65.0/24 54540 >>UNKNOWN<<
23.92.66.0/24 54540 >>UNKNOWN<<
23.92.67.0/24 54540 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:17 /9:11 /10:31 /11:93 /12:251
/13:478 /14:903 /15:1617 /16:12724 /17:6666 /18:10983
/19:22665 /20:32358 /21:34832 /22:48537 /23:42492 /24:244290
/25:8 /26:11 /27:11 /28:133 /29:204 /30:122
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1826 1861 MOBITEL
6389 1711 2976 BellSouth.net Inc.
22773 1329 2040 >>UNKNOWN<<
8402 1313 1578 >>UNKNOWN<<
30036 1208 1345 >>UNKNOWN<<
11492 1184 1223 >>UNKNOWN<<
1785 1079 2006 >>UNKNOWN<<
6983 1023 1150 ITC^Deltacom
10620 991 2673 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:799 2:780 3:3 4:16 5:913 6:17
8:592 12:1895 13:2 14:846 15:11 16:3
17:11 18:19 20:18 23:361 24:1734 27:1548
31:1420 32:40 33:2 34:5 36:70 37:1833
38:894 39:2 40:180 41:3294 42:241 44:9
46:1974 47:5 49:661 50:809 52:12 54:37
55:4 57:29 58:1088 59:644 60:331 61:1457
62:1181 63:1986 64:4556 65:2243 66:4193 67:2077
68:1092 69:3303 70:864 71:493 72:2033 74:2537
75:326 76:306 77:1125 78:1089 79:627 80:1309
81:1026 82:654 83:583 84:577 85:1219 86:482
87:1051 88:538 89:1817 90:158 91:5588 92:640
93:1673 94:2017 95:1553 96:523 97:347 98:1039
99:41 100:28 101:347 103:3171 105:519 106:138
107:210 108:480 109:1883 110:933 111:1102 112:568
113:786 114:684 115:1057 116:957 117:783 118:1120
119:1272 120:352 121:848 122:1786 123:1246 124:1338
125:1413 128:574 129:203 130:299 131:662 132:343
133:160 134:268 135:67 136:266 137:264 138:346
139:186 140:173 141:309 142:533 143:384 144:494
145:94 146:525 147:470 148:662 149:352 150:144
151:560 152:414 153:194 154:30 155:482 156:269
157:356 158:282 159:659 160:351 161:430 162:609
163:203 164:624 165:561 166:255 167:603 168:1021
169:125 170:1078 171:191 172:25 173:1576 174:516
175:483 176:1187 177:2173 178:1915 179:97 180:1520
181:663 182:1220 183:438 184:658 185:769 186:2470
187:1401 188:1877 189:1276 190:6997 192:6883 193:5529
194:4610 195:3602 196:1345 197:1019 198:4565 199:5391
200:5966 201:2602 202:8715 203:8786 204:4464 205:2585
206:2746 207:2834 208:3990 209:3610 210:2815 211:1552
212:2301 213:2036 214:909 215:100 216:5284 217:1645
218:608 219:317 220:1274 221:553 222:322 223:500
End of report