Routing Table Report 08:00 +10GMT Wed 25 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 386959
Prefixes after maximum aggregation: 167090
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191267
Total ASes present in the Internet Routing Table: 37881
Prefixes per ASN: 10.22
Origin-only ASes present in the Internet Routing Table: 32645
Origin ASes announcing only one prefix: 15534
Transit ASes present in the Internet Routing Table: 5236
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1112
Unregistered ASNs in the Routing Table: 196
Number of 32-bit ASNs allocated by the RIRs: 2211
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4551
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 126
Number of addresses announced to Internet: 2528773376
Equivalent to 150 /8s, 186 /16s and 5 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 162229
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92116
Total APNIC prefixes after maximum aggregation: 30107
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89399
Unique aggregates announced from the APNIC address blocks: 39073
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1256
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634800128
Equivalent to 37 /8s, 214 /16s and 72 /24s
Percentage of available APNIC address space announced: 80.5
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: 146407
Total ARIN prefixes after maximum aggregation: 74801
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118631
Unique aggregates announced from the ARIN address blocks: 49023
ARIN Region origin ASes present in the Internet Routing Table: 14799
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1493
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: 804982272
Equivalent to 47 /8s, 251 /16s and 14 /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: 97637
Total RIPE prefixes after maximum aggregation: 52081
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89586
Unique aggregates announced from the RIPE address blocks: 55761
RIPE Region origin ASes present in the Internet Routing Table: 16278
RIPE Prefixes per ASN: 5.50
RIPE Region origin ASes announcing only one prefix: 8000
RIPE Region transit ASes present in the Internet Routing Table: 2570
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498026240
Equivalent to 29 /8s, 175 /16s and 71 /24s
Percentage of available RIPE address space announced: 80.2
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: 36731
Total LACNIC prefixes after maximum aggregation: 7948
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36508
Unique aggregates announced from the LACNIC address blocks: 19344
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.54
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95533568
Equivalent to 5 /8s, 177 /16s and 186 /24s
Percentage of available LACNIC address space announced: 63.3
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: 8815
Total AfriNIC prefixes after maximum aggregation: 2082
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6868
Unique aggregates announced from the AfriNIC address blocks: 2136
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 3.3
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: 30846720
Equivalent to 1 /8s, 214 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1911 11097 664 Korea Telecom (KIX)
7545 1637 303 84 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
4755 1509 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1118 81 484 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
4808 980 1947 277 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 3447 3807 202 BellSouth.net Inc.
7029 3258 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1865 679 121 PaeTec Communications, Inc.
20115 1627 1554 624 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1519 2910 109 Cox Communications Inc.
30036 1444 252 729 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1311 7042 859 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 1632 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 645 1928 414 UPC Broadband
34984 638 188 171 BILISIM TELEKOM
20940 581 189 464 Akamai Technologies European
8551 575 360 81 Bezeq International
12479 554 641 56 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 538 35 9 FreeNet ISP
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 1727 322 167 Types of queries are: POCs, o
28573 1616 1068 77 Types of queries are: POCs, o
8151 1319 2996 336 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 621 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
11172 538 101 107 Alestra, S. de R.L. de C.V.
6503 528 434 69 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 1156 958 13 TEDATA
24863 830 155 40 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 230 12 17 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 160 658 81 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 3447 3807 202 BellSouth.net Inc.
7029 3258 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1911 11097 664 Korea Telecom (KIX)
1785 1865 679 121 PaeTec Communications, Inc.
10620 1727 322 167 Types of queries are: POCs, o
7545 1637 303 84 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
8402 1632 480 15 Corbina telecom
20115 1627 1554 624 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 3258 3047 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1865 1744 PaeTec Communications, Inc.
8402 1632 1617 Corbina telecom
17974 1635 1599 PT Telekomunikasi Indonesia
10620 1727 1560 Types of queries are: POCs, o
7545 1637 1553 TPG Internet Pty Ltd
28573 1616 1539 Types of queries are: POCs, o
22773 1519 1410 Cox Communications Inc.
4755 1509 1353 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
37.48.64.0/18 16265 LeaseWeb AS Macro
37.63.0.0/17 8717 Spectrum NET Jsc
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 /11:80 /12:233
/13:459 /14:815 /15:1459 /16:12090 /17:6146 /18:10190
/19:20303 /20:27990 /21:28751 /22:38792 /23:36435 /24:202615
/25:11 /26:21 /27:20 /28:154 /29:135 /30:64
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2864 3258 Windstream Communications Inc
6389 2116 3447 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1622 1727 Types of queries are: POCs, o
8402 1611 1632 Corbina telecom
30036 1403 1444 Mediacom Communications Corp
1785 1064 1865 PaeTec Communications, Inc.
11492 1059 1093 CABLE ONE, INC.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1033 1150 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:449 4:15 5:1 6:3 8:379
12:1956 13:1 14:584 15:11 16:3 17:6
20:9 23:118 24:1704 27:1177 31:877 32:60
33:2 34:2 36:8 37:103 38:789 40:114
41:3053 42:86 44:3 46:1260 47:3 49:320
50:517 52:13 54:1 55:5 56:3 57:37
58:902 59:482 60:342 61:1074 62:916 63:1970
64:4097 65:2272 66:4395 67:2019 68:1154 69:3143
70:915 71:431 72:1791 74:2629 75:445 76:321
77:944 78:901 79:506 80:1196 81:873 82:567
83:530 84:585 85:1155 86:746 87:907 88:342
89:1530 90:258 91:4456 92:533 93:1535 94:1327
95:1106 96:408 97:301 98:775 99:38 100:20
101:130 103:661 106:3 107:135 108:126 109:1468
110:692 111:835 112:416 113:525 114:596 115:737
116:856 117:707 118:898 119:1232 120:354 121:651
122:1585 123:1057 124:1303 125:1308 128:486 129:183
130:205 131:587 132:154 133:21 134:224 135:58
136:211 137:150 138:290 139:144 140:459 141:259
142:360 143:407 144:507 145:68 146:481 147:226
148:625 149:270 150:158 151:193 152:444 153:170
154:6 155:413 156:207 157:336 158:154 159:435
160:324 161:220 162:337 163:178 164:527 165:393
166:560 167:456 168:771 169:145 170:834 171:109
172:4 173:1778 174:566 175:413 176:374 177:466
178:1226 180:1222 181:43 182:686 183:272 184:409
185:1 186:1513 187:838 188:975 189:1178 190:5347
192:5938 193:5475 194:4212 195:3387 196:1255 197:171
198:3565 199:4279 200:5537 201:1690 202:8199 203:8503
204:4258 205:2410 206:2658 207:2733 208:4006 209:3527
210:2672 211:1446 212:1973 213:1830 214:842 215:93
216:4952 217:1475 218:543 219:336 220:1217 221:542
222:297 223:253
End of report
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