Routing Table Report 08:00 +10GMT Mon 23 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399409
Prefixes after maximum aggregation: 170572
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197569
Total ASes present in the Internet Routing Table: 38382
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33072
Origin ASes announcing only one prefix: 15638
Transit ASes present in the Internet Routing Table: 5310
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1206
Unregistered ASNs in the Routing Table: 222
Number of 32-bit ASNs allocated by the RIRs: 2617
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5569
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2556299008
Equivalent to 152 /8s, 94 /16s and 7 /24s
Percentage of available address space announced: 69.0
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 168927
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93608
Total APNIC prefixes after maximum aggregation: 30804
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91088
Unique aggregates announced from the APNIC address blocks: 39845
APNIC Region origin ASes present in the Internet Routing Table: 4640
APNIC Prefixes per ASN: 19.63
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643960832
Equivalent to 38 /8s, 98 /16s and 16 /24s
Percentage of available APNIC address space announced: 81.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148613
Total ARIN prefixes after maximum aggregation: 75762
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120134
Unique aggregates announced from the ARIN address blocks: 50341
ARIN Region origin ASes present in the Internet Routing Table: 14988
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5728
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807202304
Equivalent to 48 /8s, 28 /16s and 238 /24s
Percentage of available ARIN address space announced: 64.2
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, 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, 173/8,
174/8, 184/8, 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: 101792
Total RIPE prefixes after maximum aggregation: 53679
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93758
Unique aggregates announced from the RIPE address blocks: 58234
RIPE Region origin ASes present in the Internet Routing Table: 16485
RIPE Prefixes per ASN: 5.69
RIPE Region origin ASes announcing only one prefix: 8038
RIPE Region transit ASes present in the Internet Routing Table: 2607
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 510035968
Equivalent to 30 /8s, 102 /16s and 136 /24s
Percentage of available RIPE address space announced: 82.2
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39993
Total LACNIC prefixes after maximum aggregation: 8130
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40082
Unique aggregates announced from the LACNIC address blocks: 20255
LACNIC Region origin ASes present in the Internet Routing Table: 1579
LACNIC Prefixes per ASN: 25.38
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99396096
Equivalent to 5 /8s, 236 /16s and 170 /24s
Percentage of available LACNIC address space announced: 65.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9018
Total AfriNIC prefixes after maximum aggregation: 2128
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7117
Unique aggregates announced from the AfriNIC address blocks: 2182
AfriNIC Region origin ASes present in the Internet Routing Table: 529
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 0
Number of AfriNIC addresses announced to Internet: 31781888
Equivalent to 1 /8s, 228 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 47.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1928 11105 695 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1671 301 89 TPG Internet Pty Ltd
4755 1556 385 155 TATA Communications formerly
9829 1247 1069 30 National Internet Backbone
9583 1144 85 489 Sify Limited
7552 1105 1062 11 Vietel Corporation
24560 1022 385 167 Bharti Airtel Ltd., Telemedia
4808 958 1938 287 CNCGROUP IP network China169
18101 948 131 155 Reliance Infocom Ltd Internet
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 3427 3807 198 BellSouth.net Inc.
7029 3404 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1905 680 129 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1599 1060 382 tw telecom holdings, inc.
22773 1576 2910 112 Cox Communications Inc.
30036 1411 258 762 Mediacom Communications Corp
7018 1266 9807 826 AT&T Services, Inc.
11492 1185 216 364 CABLE ONE, INC.
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 1637 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 680 188 174 BILISIM TELEKOM
6830 658 2215 427 UPC Broadband
12479 643 666 63 France Telecom Espana SA
20940 634 205 500 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8441 397 Deutsche Telekom AG
8551 504 360 81 Bezeq International
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
10620 1810 327 176 Types of queries are: POCs, o
28573 1784 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1363 829 188 Telecom Argentina S.A.
8151 1347 3015 339 Uninet S.A. de C.V.
26615 902 697 32 Tim Celular S.A.
27947 662 74 98 Telconet S.A
11172 641 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 Types of queries are: POCs, o
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
8452 1316 958 13 TEDATA
24863 837 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 MTN Network Solutions
29571 159 15 15 Ci Telecom Autonomous system
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
6389 3427 3807 198 BellSouth.net Inc.
7029 3404 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1928 11105 695 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1810 327 176 Types of queries are: POCs, o
28573 1784 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1671 301 89 TPG Internet Pty Ltd
20115 1640 1566 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3404 3235 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1784 1725 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1810 1634 Types of queries are: POCs, o
8402 1637 1621 Corbina telecom
7545 1671 1582 TPG Internet Pty Ltd
22773 1576 1464 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 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
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
41.222.79.0/24 36938 >>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 /8:20 /9:12 /10:28 /11:81 /12:236
/13:459 /14:828 /15:1480 /16:12183 /17:6209 /18:10435
/19:20620 /20:28784 /21:29622 /22:40022 /23:37511 /24:210324
/25:11 /26:20 /27:20 /28:153 /29:145 /30:69
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3044 3404 Windstream Communications Inc
6389 2144 3427 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1810 Types of queries are: POCs, o
8402 1614 1637 Corbina telecom
30036 1357 1411 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1116 1316 TEDATA
1785 1071 1905 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:696 4:14 6:3 8:402 12:1974
13:1 14:600 15:12 16:3 17:7 20:23
23:165 24:1765 27:1265 31:973 32:52 33:1
34:2 36:8 37:399 38:791 40:120 41:3221
42:134 44:3 46:1492 47:3 49:381 50:532
52:13 54:8 55:9 56:3 57:28 58:915
59:486 60:277 61:1089 62:978 63:1984 64:4156
65:2250 66:4483 67:2019 68:1166 69:3184 70:901
71:486 72:1819 74:2595 75:494 76:319 77:944
78:1010 79:480 80:1204 81:900 82:673 83:550
84:471 85:1200 86:419 87:926 88:344 89:1622
90:291 91:4738 92:525 93:1341 94:1488 95:1146
96:355 97:315 98:887 99:34 100:7 101:171
103:990 106:102 107:189 108:217 109:1286 110:734
111:916 112:444 113:581 114:637 115:798 116:883
117:698 118:905 119:1187 120:348 121:666 122:1624
123:1094 124:1296 125:1245 128:509 129:188 130:247
131:587 132:172 133:22 134:234 135:62 136:211
137:173 138:355 139:146 140:465 141:244 142:383
143:389 144:521 145:69 146:486 147:277 148:677
149:302 150:150 151:174 152:462 153:171 154:8
155:415 156:212 157:335 158:176 159:449 160:335
161:237 162:348 163:180 164:574 165:399 166:572
167:468 168:815 169:127 170:859 171:127 172:2
173:1744 174:555 175:420 176:431 177:666 178:1336
180:1170 181:75 182:791 183:288 184:452 185:1
186:2228 187:1044 188:1212 189:1789 190:5520 192:5959
193:5542 194:4640 195:3583 196:1249 197:130 198:3606
199:4480 200:5706 201:1917 202:8257 203:8501 204:4246
205:2471 206:2659 207:2726 208:4050 209:3600 210:2664
211:1453 212:2019 213:1909 214:836 215:102 216:5105
217:1536 218:528 219:319 220:1224 221:538 222:294
223:318
End of report
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