Routing Table Report 08:00 +10GMT Fri 02 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392811
Prefixes after maximum aggregation: 168268
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193828
Total ASes present in the Internet Routing Table: 38057
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32796
Origin ASes announcing only one prefix: 15530
Transit ASes present in the Internet Routing Table: 5261
Transit-only ASes present in the Internet Routing Table: 130
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: 1141
Unregistered ASNs in the Routing Table: 203
Number of 32-bit ASNs allocated by the RIRs: 2303
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4855
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 413
Number of addresses announced to Internet: 2540704000
Equivalent to 151 /8s, 112 /16s and 17 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
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: 165468
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92802
Total APNIC prefixes after maximum aggregation: 30454
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90161
Unique aggregates announced from the APNIC address blocks: 39340
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641051904
Equivalent to 38 /8s, 53 /16s and 173 /24s
Percentage of available APNIC address space announced: 81.3
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: 147293
Total ARIN prefixes after maximum aggregation: 74952
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119257
Unique aggregates announced from the ARIN address blocks: 49646
ARIN Region origin ASes present in the Internet Routing Table: 14858
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1511
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805476352
Equivalent to 48 /8s, 2 /16s and 152 /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: 100125
Total RIPE prefixes after maximum aggregation: 52701
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91672
Unique aggregates announced from the RIPE address blocks: 56662
RIPE Region origin ASes present in the Internet Routing Table: 16322
RIPE Prefixes per ASN: 5.62
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2575
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: 501086720
Equivalent to 29 /8s, 221 /16s and 250 /24s
Percentage of available RIPE address space announced: 80.7
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: 38196
Total LACNIC prefixes after maximum aggregation: 7961
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38055
Unique aggregates announced from the LACNIC address blocks: 19667
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 24.38
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 277
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: 97664512
Equivalent to 5 /8s, 210 /16s and 62 /24s
Percentage of available LACNIC address space announced: 64.7
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: 8809
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6847
Unique aggregates announced from the AfriNIC address blocks: 2123
AfriNIC Region origin ASes present in the Internet Routing Table: 512
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 161
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: 31553024
Equivalent to 1 /8s, 225 /16s and 118 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1924 11104 679 Korea Telecom (KIX)
17974 1652 503 37 PT Telekomunikasi Indonesia
7545 1643 303 88 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9829 1180 997 29 National Internet Backbone
9583 1131 83 481 Sify Limited
7552 1101 1062 11 Vietel Corporation
24560 1009 385 167 Bharti Airtel Ltd., Telemedia
4808 977 1946 279 CNCGROUP IP network China169
18101 951 131 156 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
7029 3449 1040 172 Windstream Communications Inc
6389 3431 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1876 680 126 PaeTec Communications, Inc.
20115 1630 1550 632 Charter Communications
4323 1608 1075 383 tw telecom holdings, inc.
22773 1537 2910 110 Cox Communications Inc.
30036 1423 255 736 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1289 6995 848 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 1670 480 15 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 656 188 170 BILISIM TELEKOM
6830 642 1927 413 UPC Broadband
20940 621 202 481 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 601 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 540 37 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 1756 325 174 Types of queries are: POCs, o
28573 1686 1088 63 Types of queries are: POCs, o
8151 1344 2994 340 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 898 672 33 Tim Celular S.A.
27947 644 68 107 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 580 322 17 Types of queries are: POCs, o
6503 565 418 67 Axtel, S.A.B. de C.V.
3816 563 240 89 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 1249 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 168 12 19 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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
7029 3449 1040 172 Windstream Communications Inc
6389 3431 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1924 11104 679 Korea Telecom (KIX)
1785 1876 680 126 PaeTec Communications, Inc.
10620 1756 325 174 Types of queries are: POCs, o
28573 1686 1088 63 Types of queries are: POCs, o
8402 1670 480 15 Corbina telecom
17974 1652 503 37 PT Telekomunikasi Indonesia
7545 1643 303 88 TPG Internet Pty Ltd
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 3431 3232 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1876 1750 PaeTec Communications, Inc.
8402 1670 1655 Corbina telecom
28573 1686 1623 Types of queries are: POCs, o
17974 1652 1615 PT Telekomunikasi Indonesia
10620 1756 1582 Types of queries are: POCs, o
7545 1643 1555 TPG Internet Pty Ltd
22773 1537 1427 Cox Communications Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
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
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:234
/13:458 /14:814 /15:1472 /16:12113 /17:6207 /18:10342
/19:20491 /20:28342 /21:29003 /22:39310 /23:36787 /24:206558
/25:11 /26:21 /27:20 /28:152 /29:136 /30:63
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3087 3449 Windstream Communications Inc
6389 2104 3431 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
10620 1653 1756 Types of queries are: POCs, o
8402 1649 1670 Corbina telecom
30036 1373 1423 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1876 PaeTec Communications, Inc.
8452 1059 1249 TEDATA
7011 1040 1156 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:521 2:677 4:14 6:3 8:390 12:1964
13:1 14:599 15:11 16:3 17:7 20:8
23:135 24:1732 27:1197 31:983 32:60 33:2
34:2 36:9 37:213 38:773 40:116 41:3018
42:120 44:3 46:1366 47:3 49:333 50:510
52:13 54:5 55:8 56:3 57:35 58:928
59:487 60:284 61:1086 62:968 63:2003 64:4100
65:2280 66:4456 67:2033 68:1164 69:3149 70:908
71:409 72:1790 74:2644 75:470 76:319 77:972
78:962 79:489 80:1211 81:885 82:630 83:539
84:589 85:1157 86:732 87:914 88:329 89:1567
90:284 91:4518 92:516 93:1374 94:1377 95:1100
96:416 97:315 98:818 99:38 100:5 101:154
103:836 106:61 107:166 108:178 109:1523 110:724
111:859 112:425 113:531 114:608 115:783 116:859
117:703 118:901 119:1247 120:363 121:702 122:1579
123:1074 124:1302 125:1318 128:500 129:182 130:257
131:588 132:163 133:21 134:224 135:62 136:210
137:181 138:268 139:142 140:469 141:263 142:374
143:400 144:512 145:69 146:477 147:252 148:705
149:299 150:151 151:198 152:446 153:171 154:6
155:415 156:209 157:338 158:162 159:444 160:320
161:227 162:340 163:177 164:526 165:395 166:558
167:458 168:803 169:147 170:839 171:119 172:4
173:1724 174:600 175:419 176:516 177:529 178:1285
180:1184 181:68 182:735 183:282 184:434 185:1
186:2074 187:839 188:1058 189:1202 190:5457 192:5945
193:5574 194:4350 195:3400 196:1268 197:169 198:3584
199:4385 200:5630 201:1741 202:8166 203:8578 204:4283
205:2429 206:2656 207:2720 208:4049 209:3530 210:2684
211:1453 212:1987 213:1875 214:833 215:92 216:5006
217:1515 218:530 219:329 220:1225 221:547 222:295
223:304
End of report
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