Routing Table Report 08:00 +10GMT Wed 04 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 382743
Prefixes after maximum aggregation: 166495
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190376
Total ASes present in the Internet Routing Table: 37764
Prefixes per ASN: 10.14
Origin-only ASes present in the Internet Routing Table: 32550
Origin ASes announcing only one prefix: 15533
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 123
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: 2799
Unregistered ASNs in the Routing Table: 1102
Number of 32-bit ASNs allocated by the RIRs: 2153
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4312
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 123
Number of addresses announced to Internet: 2522916864
Equivalent to 150 /8s, 96 /16s and 168 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 160468
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91341
Total APNIC prefixes after maximum aggregation: 30061
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88708
Unique aggregates announced from the APNIC address blocks: 38846
APNIC Region origin ASes present in the Internet Routing Table: 4576
APNIC Prefixes per ASN: 19.39
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 696
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 632493056
Equivalent to 37 /8s, 179 /16s and 20 /24s
Percentage of available APNIC address space announced: 80.2
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: 145613
Total ARIN prefixes after maximum aggregation: 74523
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117974
Unique aggregates announced from the ARIN address blocks: 48907
ARIN Region origin ASes present in the Internet Routing Table: 14756
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1495
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: 0
Number of ARIN addresses announced to Internet: 804718592
Equivalent to 47 /8s, 247 /16s and 8 /24s
Percentage of available ARIN address space announced: 64.0
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: 95823
Total RIPE prefixes after maximum aggregation: 51849
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87795
Unique aggregates announced from the RIPE address blocks: 55528
RIPE Region origin ASes present in the Internet Routing Table: 16218
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2564
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 495666432
Equivalent to 29 /8s, 139 /16s and 69 /24s
Percentage of available RIPE address space announced: 79.8
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: 36451
Total LACNIC prefixes after maximum aggregation: 7927
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36151
Unique aggregates announced from the LACNIC address blocks: 19133
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.35
LACNIC Region origin ASes announcing only one prefix: 456
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95128832
Equivalent to 5 /8s, 171 /16s and 141 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8509
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6566
Unique aggregates announced from the AfriNIC address blocks: 2076
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 13.08
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 113
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: 30796800
Equivalent to 1 /8s, 213 /16s and 236 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1904 11096 654 Korea Telecom (KIX)
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1110 81 497 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 986 381 164 Bharti Airtel Ltd., Telemedia
18101 976 131 157 Reliance Infocom Ltd Internet
4808 956 1945 273 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 3474 3814 217 BellSouth.net Inc.
7029 2948 1042 213 Windstream Communications Inc
18566 2093 382 177 Covad Communications Co.
1785 1864 680 121 PaeTec Communications, Inc.
4323 1623 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 Charter Communications
22773 1517 2909 107 Cox Communications Inc.
30036 1476 262 690 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1313 7047 866 AT&T Services, 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 1462 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 643 1928 414 UPC Broadband
34984 635 132 197 BILISIM TELEKOM
20940 555 178 444 Akamai Technologies European
12479 552 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 530 8161 396 Deutsche Telekom AG
8551 507 360 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 1721 319 159 Types of queries are: POCs, o
28573 1562 1064 76 Types of queries are: POCs, o
8151 1313 2962 346 Uninet S.A. de C.V.
7303 1253 755 177 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 237 91 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 531 102 98 Alestra, S. de R.L. de C.V.
6503 527 434 68 Axtel, S.A.B. de C.V.
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 1039 958 13 TEDATA
24863 790 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 191 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
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 3474 3814 217 BellSouth.net Inc.
7029 2948 1042 213 Windstream Communications Inc
18566 2093 382 177 Covad Communications Co.
4766 1904 11096 654 Korea Telecom (KIX)
1785 1864 680 121 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1629 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4323 1623 1081 386 tw telecom holdings, inc.
20115 1615 1551 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 2948 2735 Windstream Communications Inc
18566 2093 1916 Covad Communications Co.
1785 1864 1743 PaeTec Communications, Inc.
17974 1629 1592 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1626 1540 TPG Internet Pty Ltd
28573 1562 1486 Types of queries are: POCs, o
8402 1462 1447 Corbina telecom
22773 1517 1410 Cox Communications Inc.
4755 1499 1342 TATA Communications formerly
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
37.28.152.0/21 23456 32-bit ASN transition
37.28.192.0/18 12353 Vodafone Portugal
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 /10:27 /11:81 /12:238
/13:465 /14:812 /15:1446 /16:12045 /17:6114 /18:10167
/19:20273 /20:27941 /21:28246 /22:38385 /23:35591 /24:200346
/25:11 /26:21 /27:19 /28:152 /29:130 /30:66
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2560 2948 Windstream Communications Inc
6389 2118 3474 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1441 1462 Corbina telecom
30036 1435 1476 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1064 1864 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:488 2:397 4:15 5:1 6:3 8:367
12:1945 13:1 14:575 15:11 16:3 17:7
20:9 23:84 24:1710 27:1159 31:834 32:62
33:2 34:2 36:4 37:10 38:785 40:114
41:2985 42:85 44:3 46:1160 47:3 49:296
50:472 52:13 55:5 56:2 57:37 58:896
59:480 60:340 61:1073 62:938 63:1965 64:4098
65:2301 66:4353 67:1997 68:1166 69:3139 70:922
71:410 72:1786 74:2643 75:431 76:320 77:922
78:863 79:498 80:1184 81:849 82:536 83:532
84:576 85:1169 86:755 87:914 88:349 89:1591
90:260 91:4397 92:534 93:1509 94:1342 95:1033
96:393 97:288 98:771 99:38 100:18 101:126
103:595 106:9 107:120 108:100 109:1424 110:681
111:835 112:410 113:496 114:594 115:709 116:852
117:704 118:894 119:1214 120:364 121:641 122:1583
123:1031 124:1303 125:1301 128:484 129:181 130:182
131:584 132:155 133:21 134:217 135:54 136:211
137:148 138:285 139:125 140:465 141:256 142:364
143:388 144:496 145:67 146:471 147:220 148:611
149:274 150:158 151:192 152:442 153:169 154:6
155:398 156:207 157:334 158:155 159:434 160:339
161:204 162:332 163:178 164:518 165:396 166:544
167:455 168:809 169:145 170:827 171:95 172:4
173:1785 174:593 175:416 176:320 177:446 178:1150
180:1211 181:43 182:669 183:264 184:422 185:1
186:1461 187:807 188:1012 189:1170 190:5325 192:5944
193:5447 194:3787 195:3193 196:1266 197:175 198:3567
199:4200 200:5492 201:1686 202:8293 203:8470 204:4259
205:2403 206:2620 207:2731 208:4000 209:3523 210:2669
211:1446 212:1983 213:1815 214:818 215:92 216:4885
217:1477 218:560 219:333 220:1217 221:541 222:297
223:248
End of report
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