The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Tuesday, November 5, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Wed 06 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 466605
Prefixes after maximum aggregation: 187785
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233385
Total ASes present in the Internet Routing Table: 45301
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 35350
Origin ASes announcing only one prefix: 16288
Transit ASes present in the Internet Routing Table: 5844
Transit-only ASes present in the Internet Routing Table: 159
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 816
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 5304
Number of 32-bit ASNs visible in the Routing Table: 4107
Prefixes from 32-bit ASNs in the Routing Table: 12764
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 946
Number of addresses announced to Internet: 2646878464
Equivalent to 157 /8s, 196 /16s and 41 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161826

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108898
Total APNIC prefixes after maximum aggregation: 33129
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111006
Unique aggregates announced from the APNIC address blocks: 47310
APNIC Region origin ASes present in the Internet Routing Table: 4857
APNIC Prefixes per ASN: 22.85
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 811
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 727
Number of APNIC addresses announced to Internet: 723755776
Equivalent to 43 /8s, 35 /16s and 163 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162004
Total ARIN prefixes after maximum aggregation: 81286
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163084
Unique aggregates announced from the ARIN address blocks: 75820
ARIN Region origin ASes present in the Internet Routing Table: 15904
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6013
ARIN Region transit ASes present in the Internet Routing Table: 1628
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 33
Number of ARIN addresses announced to Internet: 1072923648
Equivalent to 63 /8s, 243 /16s and 132 /24s
Percentage of available ARIN address space announced: 56.8

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: 118368
Total RIPE prefixes after maximum aggregation: 60801
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 121987
Unique aggregates announced from the RIPE address blocks: 78589
RIPE Region origin ASes present in the Internet Routing Table: 17477
RIPE Prefixes per ASN: 6.98
RIPE Region origin ASes announcing only one prefix: 8291
RIPE Region transit ASes present in the Internet Routing Table: 2817
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2456
Number of RIPE addresses announced to Internet: 656228352
Equivalent to 39 /8s, 29 /16s and 64 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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: 52233
Total LACNIC prefixes after maximum aggregation: 9834
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57279
Unique aggregates announced from the LACNIC address blocks: 26851
LACNIC Region origin ASes present in the Internet Routing Table: 2025
LACNIC Prefixes per ASN: 28.29
LACNIC Region origin ASes announcing only one prefix: 548
LACNIC Region transit ASes present in the Internet Routing Table: 384
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 885
Number of LACNIC addresses announced to Internet: 142370048
Equivalent to 8 /8s, 124 /16s and 101 /24s
Percentage of available LACNIC address space announced: 84.9

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: 11664
Total AfriNIC prefixes after maximum aggregation: 2600
AfriNIC Deaggregation factor: 4.49
Prefixes being announced from the AfriNIC address blocks: 12302
Unique aggregates announced from the AfriNIC address blocks: 4052
AfriNIC Region origin ASes present in the Internet Routing Table: 678
AfriNIC Prefixes per ASN: 18.14
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48097024
Equivalent to 2 /8s, 221 /16s and 231 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2712 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2136 11550 644 Korea Telecom (KIX)
7545 2093 319 109 TPG Internet Pty Ltd
4755 1787 391 188 TATA Communications formerly
9829 1552 1242 48 BSNL National Internet Backbo
4808 1287 2191 365 CNCGROUP IP network: China169
9498 1210 309 74 BHARTI Airtel Ltd.
9583 1189 91 512 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3056 3688 56 BellSouth.net Inc.
22773 2188 2939 138 Cox Communications, Inc.
18566 2057 379 179 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1681 1654 607 Charter Communications
4323 1638 1102 421 Time Warner Telecom
701 1504 11145 782 MCI Communications Services,
30036 1388 313 578 Mediacom Communications Corp
7018 1345 17796 880 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1823 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1133 418 865 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 849 356 30 JSC UKRTELECOM,
6830 775 2328 427 UPC Distribution Services
8551 764 370 41 Bezeq International
12479 675 798 55 Uni2 Autonomous System
35228 540 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3446 1784 85 NET Servicos de Comunicao S.A
10620 2642 428 237 TVCABLE BOGOTA
7303 1724 1144 233 Telecom Argentina Stet-France
18881 1533 844 20 Global Village Telecom
8151 1350 2848 412 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 812 93 89 Telconet S.A
6147 791 373 27 Telefonica Del Peru
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 885 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 408 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 227 501 29 Etisalat MISR
29571 223 17 12 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3446 1784 85 NET Servicos de Comunicao S.A
6389 3056 3688 56 BellSouth.net Inc.
17974 2712 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2642 428 237 TVCABLE BOGOTA
22773 2188 2939 138 Cox Communications, Inc.
4766 2136 11550 644 Korea Telecom (KIX)
7545 2093 319 109 TPG Internet Pty Ltd
18566 2057 379 179 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
36998 1854 112 5 Sudanese Mobile Telephone (ZA

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3056 3000 BellSouth.net Inc.
17974 2712 2623 PT TELEKOMUNIKASI INDONESIA
10620 2642 2405 TVCABLE BOGOTA
22773 2188 2050 Cox Communications, Inc.
7545 2093 1984 TPG Internet Pty Ltd
1785 2028 1902 PaeTec Communications, Inc.
18566 2057 1878 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
8402 1823 1806 OJSC "Vimpelcom"
4755 1787 1599 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 40676 Psychz Networks
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:473 /14:915 /15:1604 /16:12770 /17:6698 /18:11169
/19:22927 /20:32676 /21:35416 /22:49703 /23:43459 /24:248360
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2011 2057 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1709 3056 BellSouth.net Inc.
8402 1515 1823 OJSC "Vimpelcom"
22773 1454 2188 Cox Communications, Inc.
30036 1235 1388 Mediacom Communications Corp
11492 1199 1240 Cable One
1785 1080 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 968 1245 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:883 2:846 3:3 4:17 5:1023 6:21
8:616 12:1893 13:3 14:884 15:11 16:3
17:18 18:19 20:21 23:512 24:1742 27:1607
31:1495 32:45 33:2 34:5 36:81 37:1897
38:921 39:4 40:178 41:3200 42:226 44:14
46:2016 47:10 49:683 50:829 52:12 54:42
55:6 56:2 57:26 58:1086 59:574 60:373
61:1466 62:1213 63:1988 64:4355 65:2342 66:4133
67:2095 68:1105 69:3285 70:870 71:489 72:2037
74:2553 75:328 76:295 77:1167 78:1057 79:645
80:1286 81:1031 82:640 83:632 84:582 85:1239
86:381 87:1008 88:563 89:1553 90:150 91:5636
92:619 93:1594 94:2016 95:1588 96:512 97:344
98:1043 99:39 100:30 101:623 103:3523 105:527
106:131 107:211 108:533 109:1912 110:962 111:1106
112:592 113:808 114:747 115:1041 116:998 117:829
118:1174 119:1262 120:359 121:749 122:1826 123:1248
124:1305 125:1431 128:650 129:229 130:329 131:667
132:365 133:157 134:553 135:67 136:279 137:267
138:350 139:177 140:192 141:333 142:539 143:408
144:492 145:88 146:521 147:392 148:781 149:367
150:154 151:587 152:411 153:204 154:52 155:490
156:290 157:423 158:279 159:686 160:359 161:454
162:821 163:223 164:619 165:584 166:257 167:632
168:1041 169:128 170:1117 171:183 172:25 173:1604
174:686 175:513 176:1274 177:2398 178:1957 179:204
180:1576 181:825 182:1339 183:462 184:667 185:996
186:2592 187:1472 188:1818 189:1269 190:7214 192:7075
193:5406 194:4029 195:3357 196:1326 197:1034 198:4734
199:5482 200:6086 201:2518 202:8927 203:8864 204:4535
205:2645 206:2840 207:2830 208:3988 209:3651 210:2942
211:1558 212:2139 213:1982 214:890 215:91 216:5385
217:1685 218:626 219:321 220:1274 221:566 222:326
223:505

End of report
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